(Slip Opinion) OCTOBER TERM, 2007 1
Syllabus
NOTE: Where it is feasible, a syllabus (headnote) will be released, as is
being done in connection with this case, at the time the opinion is issued.
The syllabus constitutes no part of the opinion of the Court but has been
prepared by the Reporter of Decisions for the convenience of the reader.
See United States v. Detroit Timber & Lumber Co., 200 U. S. 321, 337.
SUPREME COURT OF THE UNITED STATES
Syllabus
MUNAF ET AL. v. GEREN, SECRETARY OF THE ARMY,
ET AL.
CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR
THE DISTRICT OF COLUMBIA CIRCUIT
No. 06–1666. Argued March 25, 2008—Decided June 12, 2008*
The Multinational Force–Iraq (MNF–I) is an international coalition
force composed of 26 nations, including the United States. It oper-
ates in Iraq under the unified command of U. S. military officers, at
the Iraqi Government’s request, and in accordance with United Na-
tions Security Council Resolutions. Pursuant to the U. N. mandate,
MNF–I forces detain individuals alleged to have committed hostile or
warlike acts in Iraq, pending investigation and prosecution in Iraqi
courts under Iraqi law.
Shawqi Omar and Mohammad Munaf (hereinafter petitioners) are
American citizens who voluntarily traveled to Iraq and allegedly
committed crimes there. They were each captured by military forces
operating as part of the MNF–I; given hearings before MNF–I Tribu-
nals composed of American officers, who concluded that petitioners
posed threats to Iraq’s security; and placed in the custody of the U. S.
military operating as part of the MNF-I. Family members filed next-
friend habeas corpus petitions on behalf of both petitioners in the
United States District Court for the District of Columbia.
In Omar’s case, after the Department of Justice informed Omar
that the MNF–I had decided to refer him to the Central Criminal
Court of Iraq for criminal proceedings, his attorney sought and ob-
tained a preliminary injunction from the District Court barring
Omar’s removal from United States or MNF-I custody. Affirming,
the D. C. Circuit first upheld the District Court’s exercise of habeas
jurisdiction, finding that Hirota v. MacArthur, 338 U. S. 197, did not
——————
* Together with No. 07–394, Geren, Secretary of the Army, et al. v.
Omar et al., also on certiorari to the same court.
2 MUNAF v. GEREN
Syllabus
preclude review because Omar, unlike the habeas petitioners in Hi-
rota, had yet to be convicted by a foreign tribunal.
Meanwhile, the District Court in Munaf’s case dismissed his ha-
beas petition for lack of jurisdiction. The court concluded that Hirota
controlled and required that the petition be dismissed for lack of ju-
risdiction because the American forces holding Munaf were operating
as part of an international force—the MNF-I. The D. C. Circuit
agreed and affirmed. It distinguished its prior decision in Omar,
which upheld jurisdiction over Omar’s habeas petition, on the
grounds that Munaf had been convicted by a foreign tribunal while
Omar had not.
Held:
1. The habeas statute extends to American citizens held overseas
by American forces operating subject to an American chain of com-
mand. The Government’s argument that the federal courts lack ju-
risdiction over the detainees’ habeas petitions in such circumstances
because the American forces holding Omar and Munaf operate as
part of a multinational force is rejected. The habeas statute, 28
U. S. C. §2241(c)(1), applies to persons held “in custody under or by
color of the authority of the United States.” The disjunctive “or” in
§2241(c)(1) makes clear that actual Government custody suffices for
jurisdiction, even if that custody could be viewed as “under . . . color
of” another authority, such as the MNF–I.
The Court also rejects the Government’s contention that the Dis-
trict Court lacks jurisdiction in these cases because the multinational
character of the MNF–I, like the multinational character of the tri-
bunal at issue in Hirota, means that the MNF-I is not a United
States entity subject to habeas. The present cases differ from Hirota
in several respects. The Court in Hirota may have found it signifi-
cant, in considering the nature of the tribunal established by General
MacArthur, that in that case the Government argued that General
MacArthur was not subject to United States authority, that his duty
was to obey the Far Eastern Commission and not the U. S. War De-
partment, and that no process this Court could issue would have any
effect on his action. Here, in contrast, the Government acknowl-
edges that U. S. military commanders answer to the President.
These cases also differ from Hirota in that they concern American
citizens, and the Court has indicated that habeas jurisdiction can de-
pend on citizenship. See e.g., Johnson v. Eisentrager, 339 U. S. 763,
781. Pp. 7–11.
2. Federal district courts, however, may not exercise their habeas
jurisdiction to enjoin the United States from transferring individuals
alleged to have committed crimes and detained within the territory of
a foreign sovereign to that sovereign for criminal prosecution. Be-
Cite as: 553 U. S. ____ (2008) 3
Syllabus
cause petitioners state no claim in their habeas petitions for which
relief can be granted, their habeas petitions should have been
promptly dismissed, and no injunction should have been entered.
Pp. 11–28.
(a) The District Court abused its discretion in granting Omar a
preliminary injunction, which the D. C. Circuit interpreted as prohib-
iting the Government from (1) transferring Omar to Iraqi custody, (2)
sharing with the Iraqi Government details concerning any decision to
release him, and (3) presenting him to the Iraqi courts for investiga-
tion and prosecution, without even considering the merits of the ha-
beas petition. A preliminary injunction is an “extraordinary and
drastic remedy.” It should never be awarded as of right, Yakus v.
United States, 321 U. S. 414, 440, and requires a demonstration of,
inter alia, “a likelihood of success on the merits,” Gonzales v. O
Centro Espírita Beneficente União do Vegetal, 546 U. S. 418, 428.
But neither the District Court nor the D. C. Circuit considered the
likelihood of success as to the merits of Omar’s habeas petition. In-
stead, the lower courts concluded that the “jurisdictional issues” im-
plicated by Omar’s petition presented difficult and substantial ques-
tions. A difficult question as to jurisdiction is, of course, no reason to
grant a preliminary injunction.
The foregoing analysis would require reversal and remand in each
of these cases: The lower courts in Munaf erred in dismissing for
want of jurisdiction, and the lower courts in Omar erred in issuing
and upholding the preliminary injunction. Our review of a prelimi-
nary injunction, however, “is not confined to the act of granting the
injunctio[n].” City and County of Denver v. New York Trust Co., 229
U. S. 123, 136. Rather, a reviewing court has the power on appeal
from an interlocutory order “to examine the merits of the case . . . and
upon deciding them in favor of the defendant to dismiss the bill.”
North Carolina R. Co. v. Story, 268 U. S. 288, 292. In short, there are
occasions when it is appropriate for a court reviewing a preliminary
injunction to proceed to the merits; given that the present cases im-
plicate sensitive foreign policy issues in the context of ongoing mili-
tary operations, this is one of them. Pp. 11–14.
(b) Petitioners argue that they are entitled to habeas relief be-
cause they have a legally enforceable right not to be transferred to
Iraqi authorities for criminal proceedings and because they are inno-
cent civilians unlawfully detained by the Government. With respect
to the transfer claim, they request an injunction prohibiting the Gov-
ernment from transferring them to Iraqi custody. With respect to the
unlawful detention claim, they seek release but only to the extent it
would not result in unlawful transfer to Iraqi custody. Because both
requests would interfere with Iraq’s sovereign right to “punish of-
4 MUNAF v. GEREN
Syllabus
fenses against its laws committed within its borders,” Wilson v. Gi
rard, 354 U. S. 524, 529, petitioners’ claims do not state grounds
upon which habeas relief may be granted. Their habeas petitions
should have been promptly dismissed and no injunction should have
been entered. Pp. 14–28.
(1) Habeas is governed by equitable principles. Thus, pruden-
tial concerns may “require a federal court to forgo the exercise of its
habeas . . . power.” Francis v. Henderson, 425 U. S. 536, 539. Here,
the unusual nature of the relief sought by petitioners suggests that
habeas is not appropriate. Habeas is at its core a remedy for unlaw-
ful executive detention. Hamdi v. Rumsfeld, 542 U. S. 507, 536. The
typical remedy is, of course, release. See, e.g., Preiser v. Rodriguez,
411 U. S. 475, 484. But the habeas petitioners in these cases do not
want simple release; that would expose them to apprehension by
Iraqi authorities for criminal prosecution—precisely what they went
to federal court to avoid.
The habeas petitioners do not dispute that they voluntarily trav-
eled to Iraq, that they remain detained within the sovereign territory
of Iraq today, or that they are alleged to have committed serious
crimes in Iraq. Indeed, Omar and Munaf both concede that, if they
were not in MNF–I custody, Iraq would be free to arrest and prose-
cute them under Iraqi law. Further, Munaf is the subject of ongoing
Iraqi criminal proceedings and Omar would be but for the present in-
junction. Given these facts, Iraq has a sovereign right to prosecute
them for crimes committed on its soil, even if its criminal process
does not come with all the rights guaranteed by the Constitution, see
Neely v. Henkel, 180 U. S. 109, 123. As Chief Justice Marshall ex-
plained nearly two centuries ago, “[t]he jurisdiction of the nation
within its own territory is necessarily exclusive and absolute.”
Schooner Exchange v. McFaddon, 7 Cranch 116, 136.
This Court has twice applied that principle in rejecting claims that
the Constitution precludes the Executive from transferring a prisoner
to a foreign country for prosecution in an allegedly unconstitutional
trial. Wilson, supra, at 529–530; Neely, supra, at 112–113, 122.
Omar and Munaf concede that Iraq has a sovereign right to prosecute
them for alleged violations of its law. Yet they went to federal court
seeking an order that would allow them to defeat precisely that sov-
ereign authority. But habeas corpus does not bar the United States
from transferring a prisoner to the sovereign authority he concedes
has a right to prosecute him. Petitioners’ “release” claim adds noth-
ing to their “transfer” claim and fails for the same reasons, given that
the release they seek is release that would avoid transfer.
There is of course even more at issue here: Neely involved a charge
of embezzlement and Wilson the peacetime actions of a serviceman.
Cite as: 553 U. S. ____ (2008) 5
Syllabus
The present cases concern individuals captured and detained within
an ally’s territory during ongoing hostilities involving our troops. It
would be very odd to hold that the Executive can transfer individuals
such as those in the Neely and Wilson cases, but cannot transfer to an
ally detainees captured by our Armed Forces for engaging in serious
hostile acts against that ally in what the Government refers to as “an
active theater of combat.” Pp. 15–23.
(2) Petitioners’ allegations that their transfer to Iraqi custody
is likely to result in torture are a matter of serious concern but those
allegations generally must be addressed by the political branches, not
the judiciary. The recognition that it is for the democratically elected
branches to assess practices in foreign countries and to determine na-
tional policy in light of those assessments is nothing new. As Chief
Justice Marshall explained in the Schooner Exchange, “exemptions
from territorial jurisdiction . . . must be derived from the consent of
the sovereign of the territory” and are “rather questions of policy
than of law, . . . they are for diplomatic, rather than legal discussion.”
7 Cranch, at 143, 146. In the present cases, the Government explains
that it is the policy of the United States not to transfer an individual
in circumstances where torture is likely to result and that the State
Department has determined that the Justice Ministry—the depart-
ment which has authority over Munaf and Omar—as well as its
prison and detention facilities, have generally met internationally ac-
cepted standards for basic prisoner needs. The judiciary is not suited
to second-guess such determinations. Pp. 23–26.
(3) Petitioners’ argument that, under Valentine v. United
States ex rel. Neidecker, 299 U. S. 5, the Executive lacks discretion to
transfer a citizen to Iraqi custody unless “legal authority” to do so “is
given by act of Congress or by the terms of a treaty,” id., at 9, is re-
jected. Valentine was an extradition case; the present cases involve
the transfer to a sovereign’s authority of an individual captured and
already detained in that sovereign’s territory. Wilson, supra, also
forecloses petitioners’ contention. A Status of Forces Agreement
there seemed to give the habeas petitioner a right to trial by an
American military tribunal, rather than a Japanese court, 354 U. S.,
at 529, but this Court found no “constitutional or statutory” impedi-
ment to the Government’s waiver of its jurisdiction in light of Japan’s
sovereign interest in prosecuting crimes committed within its bor-
ders, id., at 530. Pp. 26–28.
No. 06–1666, 482 F. 3d 582; No. 07–394, 479 F. 3d 1, vacated and
remanded.
ROBERTS, C. J., delivered the opinion for a unanimous Court.
SOUTER, J., filed a concurring opinion, in which GINSBURG and BREYER,
JJ., joined.
Cite as: 553 U. S. ____ (2008) 1
Opinion of the Court
NOTICE: This opinion is subject to formal revision before publication in the
preliminary print of the United States Reports. Readers are requested to
notify the Reporter of Decisions, Supreme Court of the United States, Wash
ington, D. C. 20543, of any typographical or other formal errors, in order
that corrections may be made before the preliminary print goes to press.
SUPREME COURT OF THE UNITED STATES
_________________
Nos. 06–1666 and 07–394
_________________
MOHAMMAD MUNAF, ET AL., PETITIONERS
06–1666 v.
PETE GEREN, SECRETARY OF THE
ARMY, ET AL.
PETE GEREN, SECRETARY OF THE ARMY, ET AL.,
PETITIONERS
07–394 v.
SANDRA K. OMAR AND AHMED S. OMAR, AS
NEXT FRIENDS OF SHAWQI AHMAD OMAR
ON WRITS OF CERTIORARI TO THE UNITED STATES COURT OF
APPEALS FOR THE DISTRICT OF COLUMBIA CIRCUIT
[June 12, 2008]
CHIEF JUSTICE ROBERTS delivered the opinion of the
Court.
The Multinational Force–Iraq (MNF–I) is an interna
tional coalition force operating in Iraq composed of 26
different nations, including the United States. The force
operates under the unified command of United States
military officers, at the request of the Iraqi Government,
and in accordance with United Nations (U. N.) Security
Council Resolutions. Pursuant to the U. N. mandate,
MNF–I forces detain individuals alleged to have commit
ted hostile or warlike acts in Iraq, pending investigation
and prosecution in Iraqi courts under Iraqi law.
These consolidated cases concern the availability of
2 MUNAF v. GEREN
Opinion of the Court
habeas corpus relief arising from the MNF–I’s detention of
American citizens who voluntarily traveled to Iraq and are
alleged to have committed crimes there. We are con
fronted with two questions. First, do United States courts
have jurisdiction over habeas corpus petitions filed on
behalf of American citizens challenging their detention in
Iraq by the MNF–I? Second, if such jurisdiction exists,
may district courts exercise that jurisdiction to enjoin the
MNF–I from transferring such individuals to Iraqi custody
or allowing them to be tried before Iraqi courts?
We conclude that the habeas statute extends to Ameri
can citizens held overseas by American forces operating
subject to an American chain of command, even when
those forces are acting as part of a multinational coalition.
Under circumstances such as those presented here, how
ever, habeas corpus provides petitioners with no relief.
I
Pursuant to its U. N. mandate, the MNF–I has “ ‘the
authority to take all necessary measures to contribute to
the maintenance of security and stability in Iraq.’ ” App. G
to Pet. for Cert. in 07–394, p. 74a, ¶10 (quoting U. N.
Security Council, U. N. Doc. S/Res/1546, ¶10 (June 2004)).
To this end, the MNF–I engages in a variety of military
and humanitarian activities. The multinational force, for
example, conducts combat operations against insurgent
factions, trains and equips Iraqi security forces, and aids
in relief and reconstruction efforts.
MNF–I forces also detain individuals who pose a threat
to the security of Iraq. The Government of Iraq retains
ultimate responsibility for the arrest and imprisonment of
individuals who violate its laws, but because many of
Iraq’s prison facilities have been destroyed, the MNF–I
agreed to maintain physical custody of many such indi
viduals during Iraqi criminal proceedings. MNF–I forces
are currently holding approximately 24,000 detainees. An
Cite as: 553 U. S. ____ (2008) 3
Opinion of the Court
American military unit, Task Force 134, oversees deten
tion operations and facilities in Iraq, including those
located at Camp Cropper, the detention facility currently
housing Shawqi Omar and Mohammad Munaf (herein-
after petitioners). The unit is under the command of
United States military officers who report to General
David Petraeus.
A
Petitioner Shawqi Omar, an American-Jordanian citi
zen, voluntarily traveled to Iraq in 2002. In October 2004,
Omar was captured and detained in Iraq by U. S. military
forces operating as part of the MNF–I during a raid of his
Baghdad home. Omar is believed to have provided aid to
Abu Musab al-Zarqawi—the late leader of al Qaeda in
Iraq—by facilitating his group’s connection with other
terrorist groups, bringing foreign fighters into Iraq, and
planning and executing kidnappings in Iraq. MNF–I
searched his home in an effort to capture and detain in
surgents who were associated with al-Zarqawi. The raid
netted an Iraqi insurgent and four Jordanian fighters
along with explosive devices and other weapons.
The captured insurgents gave sworn statements impli
cating Omar in insurgent cell activities. The four Jorda
nians testified that they had traveled to Iraq with Omar to
commit militant acts against American and other Coali
tion Forces. Each of the insurgents stated that, while
living in Omar’s home, they had surveilled potential kid
nap victims and conducted weapons training. The insur
gents explained that Omar’s fluency in English allowed
him to lure foreigners to his home in order to kidnap and
sell them for ransom.
Following Omar’s arrest, a three-member MNF–I Tri
bunal composed of American military officers concluded
that Omar posed a threat to the security of Iraq and des
ignated him a “security internee.” The tribunal also found
that Omar had committed hostile and warlike acts, and
4 MUNAF v. GEREN
Opinion of the Court
that he was an enemy combatant in the war on terrorism.
In accordance with Article 5 of the Geneva Convention,
Omar was permitted to hear the basis for his deten-
tion, make a statement, and call immediately available
witnesses.
In addition to the review of his detention by the MNF–I
Tribunal, Omar received a hearing before the Combined
Review and Release Board (CRRB)—a nine-member board
composed of six representatives of the Iraqi Government
and three MNF–I officers. The CRRB, like the MNF–I
Tribunal, concluded that Omar’s continued detention was
necessary because he posed a threat to Iraqi security. At
all times since his capture, Omar has remained in the
custody of the United States military operating as part of
the MNF–I.
Omar’s wife and son filed a next-friend petition for a
writ of habeas corpus on Omar’s behalf in the District
Court for the District of Columbia. Omar v. Harvey, 479
F. 3d 1, 4 (CADC 2007). After the Department of Justice
informed Omar that the MNF–I had decided to refer him
to the Central Criminal Court of Iraq (CCCI) for criminal
proceedings, his attorney sought and obtained a prelimi
nary injunction barring Omar’s “remov[al] . . . from United
States or MNF-I custody.” App. to Pet. in No. 07–394,
supra, at 59a. The order directed that
“the [United States], their agents, servants, employ
ees, confederates, and any persons acting in concert or
participation with them, or having actual or implicit
knowledge of this Order . . . shall not remove [Omar]
from United States or MNF-I custody, or take any
other action inconsistent with this court’s memoran
dum opinion.” Ibid.
The United States appealed and the Court of Appeals
for the District of Columbia Circuit affirmed. Omar, 479
F. 3d 1. The Court of Appeals first upheld the District
Cite as: 553 U. S. ____ (2008) 5
Opinion of the Court
Court’s exercise of habeas jurisdiction, finding that this
Court’s decision in Hirota v. MacArthur, 338 U. S. 197
(1948) (per curiam), did not preclude review. The Court of
Appeals distinguished Hirota on the ground that Omar,
unlike the petitioner in that case, had yet to be convicted
by a foreign tribunal. 479 F. 3d, at 7–9. The Court of
Appeals recognized, however, that the writ of habeas
corpus could not be used to enjoin release. Id., at 11. It
therefore construed the injunction only to bar transfer to
Iraqi custody and upheld the District Court’s order insofar
as it prohibited the United States from: (1) transferring
Omar to Iraqi custody, id., at 11–13; (2) sharing details
concerning any decision to release Omar with the Iraqi
Government, id., at 13; and (3) presenting Omar to the
Iraqi Courts for investigation and prosecution, id., at 14.
Judge Brown dissented. She joined the panel’s jurisdic
tional ruling, but would have vacated the injunction be
cause, in her view, the District Court had no authority to
enjoin a transfer that would allow Iraqi officials to take
custody of an individual captured in Iraq—something the
Iraqi Government “undeniably h[ad] a right to do.” Id., at
19. We granted certiorari. 552 U. S. ___ (2007).
B
Petitioner Munaf, a citizen of both Iraq and the United
States, voluntarily traveled to Iraq with several Romanian
journalists. He was to serve as the journalists’ translator
and guide. Shortly after arriving in Iraq, the group
was kidnapped and held captive for two months. After
the journalists were freed, MNF–I forces detained
Munaf based on their belief that he had orchestrated the
kidnappings.
A three-judge MNF–I Tribunal conducted a hearing to
determine whether Munaf’s detention was warranted.
The MNF–I Tribunal reviewed the facts surrounding
Munaf’s capture, interviewed witnesses, and considered
6 MUNAF v. GEREN
Opinion of the Court
the available intelligence information. Munaf was present
at the hearing and had an opportunity to hear the grounds
for his detention, make a statement, and call immediately
available witnesses. At the end of the hearing, the tribu
nal found that Munaf posed a serious threat to Iraqi secu
rity, designated him a “security internee,” and referred
his case to the CCCI for criminal investigation and
prosecution.
During his CCCI trial, Munaf admitted on camera and
in writing that he had facilitated the kidnapping of the
Romanian journalists. He also appeared as a witness
against his alleged co-conspirators. Later in the proceed
ings, Munaf recanted his confession, but the CCCI none
theless found him guilty of kidnapping. On appeal, the
Iraqi Court of Cassation vacated Munaf’s conviction and
remanded his case to the CCCI for further investigation.
In re Hikmat, No. 19/Pub. Comm’n/2007, p. 5 (Feb. 19,
2008). The Court of Cassation directed that Munaf was to
“remain in custody pending the outcome” of further crimi
nal proceedings. Ibid.
Meanwhile, Munaf ’s sister filed a next-friend petition
for a writ of habeas corpus in the District Court for the
District of Columbia. Mohammed v. Harvey, 456 F. Supp.
2d 115, 118 (2006). The District Court dismissed the
petition for lack of jurisdiction, finding that this Court’s
decision in Hirota controlled: Munaf was “in the custody of
coalition troops operating under the aegis of MNF–I, who
derive their ultimate authority from the United Nations
and the MNF-I member nations acting jointly.” 456
F. Supp. 2d, at 122.
The Court of Appeals for the District of Columbia Cir
cuit affirmed. 482 F. 3d 582 (2007) (hereinafter Muraf).
The Court of Appeals, “[c]onstrained by precedent,” agreed
with the District Court that Hirota controlled and dis
missed Munaf’s petition for lack of jurisdiction. 482 F. 3d,
at 583. It distinguished the prior opinion in Omar on the
Cite as: 553 U. S. ____ (2008) 7
Opinion of the Court
ground that Munaf, like the habeas petitioner in Hirota
but unlike Omar, had been convicted by a foreign tribunal.
482 F. 3d, at 583–584.
Judge Randolph concurred in the judgment. Id., at 585.
He concluded that the District Court had improperly
dismissed for want of jurisdiction because “Munaf is an
American citizen . . . held by American forces overseas.”
Ibid. Nevertheless, Judge Randolph would have held that
Munaf’s habeas petition failed on the merits. Id., at 586.
He relied on this Court’s holding in Wilson v. Girard, 354
U. S. 524, 529 (1957), that a “sovereign nation has exclu
sive jurisdiction to punish offenses against its laws com
mitted within its borders,” and concluded that the fact
that the United States was holding Munaf because of his
conviction by a foreign tribunal was conclusive. Ibid.1
We granted certiorari and consolidated the Omar and
Munaf cases. 552 U. S. ___ (2007).
II
The Solicitor General argues that the federal courts lack
jurisdiction over the detainees’ habeas petitions because
the American forces holding Omar and Munaf operate as
part of a multinational force. Brief for Federal Parties 17–
36. The habeas statute provides that a federal district
court may entertain a habeas application by a person held
“in custody under or by color of the authority of the United
States,” or “in custody in violation of the Constitution or
laws or treaties of the United States.” 28 U. S. C.
§§2241(c)(1), (3). MNF–I forces, the argument goes, “are
not operating solely under United States authority, but
rather ‘as the agent of’ a multinational force.” Brief for
Federal Parties 23 (quoting Hirota, supra, at 198). Omar
and Munaf are thus held pursuant to international au
——————
1 As noted above, Munaf’s conviction was subsequently vacated by an
Iraqi appellate court, and he is awaiting a new trial.
8 MUNAF v. GEREN
Opinion of the Court
thority, not “the authority of the United States,”
§2241(c)(1), and they are therefore not within the reach of
the habeas statute. Brief for Federal Parties 17–18.2
The United States acknowledges that Omar and Munaf
are American citizens held overseas in the immediate
“ ‘physical custody’ ” of American soldiers who answer only
to an American chain of command. Id., at 21. The MNF–I
itself operates subject to a unified American command.
Id., at 23. “[A]s a practical matter,” the Government
concedes, it is “the President and the Pentagon, the Secre
tary of Defense, and the American commanders that con
trol what . . . American soldiers do,” Tr. of Oral Arg. 15,
including the soldiers holding Munaf and Omar. In light
of these admissions, it is unsurprising that the United
States has never argued that it lacks the authority to
release Munaf or Omar, or that it requires the consent of
other countries to do so.
We think these concessions the end of the jurisdictional
inquiry. The Government’s argument—that the federal
courts have no jurisdiction over American citizens held by
American forces operating as multinational agents—is not
easily reconciled with the text of §2241(c)(1). See Duncan
v. Walker, 533 U. S. 167, 172 (2001) (“We begin, as always,
with the language of the statute”). That section applies to
persons held “in custody under or by color of the authority
of the United States.” §2241(c)(1). An individual is held
“in custody” by the United States when the United States
official charged with his detention has “the power to pro
duce” him. Wales v. Whitney, 114 U. S. 564, 574 (1885);
see also §2243 (“The writ . . . shall be directed to the per
son having custody of the person detained”). The disjunc
tive “or” in §2241(c)(1) makes clear that actual custody by
——————
2 These cases concern only American citizens and only the statutory
reach of the writ. Nothing herein addresses jurisdiction with respect to
alien petitioners or with respect to the constitutional scope of the writ.
Cite as: 553 U. S. ____ (2008) 9
Opinion of the Court
the United States suffices for jurisdiction, even if that
custody could be viewed as “under . . . color of” another
authority, such as the MNF–I.
The Government’s primary contention is that the Dis
trict Courts lack jurisdiction in these cases because of this
Court’s decision in Hirota. That slip of a case cannot bear
the weight the Government would place on it. In Hirota,
Japanese citizens sought permission to file habeas corpus
applications directly in this Court. The petitioners were
noncitizens detained in Japan. They had been convicted
and sentenced by the International Military Tribunal for
the Far East—an international tribunal established by
General Douglas MacArthur acting, as the Court put it, in
his capacity as “the agent of the Allied Powers.” 338 U. S.,
at 198. Although those familiar with the history of the
period would appreciate the possibility of confusion over
who General MacArthur took orders from, the Court con
cluded that the sentencing tribunal was “not a tribunal of
the United States.” Ibid. The Court then held that,
“[u]nder the foregoing circumstances,” United States
courts had “no power or authority to review, to affirm, set
aside or annul the judgments and sentences” imposed by
that tribunal. Ibid. Accordingly, the Court denied peti
tioners leave to file their habeas corpus applications,
without further legal analysis. Ibid.
The Government argues that the multinational charac
ter of the MNF–I, like the multinational character of the
tribunal at issue in Hirota, means that it too is not a
United States entity subject to habeas. Reply Brief for
Federal Parties 5–7. In making this claim, the Govern
ment acknowledges that the MNF–I is subject to American
authority, but contends that the same was true of the
tribunal at issue in Hirota. In Hirota, the Government
notes, the petitioners were held by the United States
Eighth Army, which took orders from General MacArthur,
338 U. S., at 199 (Douglas, J., concurring), and were sub
10 MUNAF v. GEREN
Opinion of the Court
ject to an “unbroken” chain of U. S. command, ending with
the President of the United States, id., at 207.
The Court in Hirota, however, may have found it signifi
cant, in considering the nature of the tribunal established
by General MacArthur, that the Solicitor General ex
pressly contended that General MacArthur, as pertinent,
was not subject to United States authority. The facts
suggesting that the tribunal in Hirota was subject to an
“unbroken” United States chain of command were not
among the “foregoing circumstances” cited in the per
curiam opinion disposing of the case, id., at 198. They
were highlighted only in Justice Douglas’s belated opinion
concurring in the result, published five months after that
per curiam. Id., at 199, n.*. Indeed, arguing before this
Court, Solicitor General Perlman stated that General
MacArthur did not serve “under the Joint Chiefs of Staff,”
that his duty was “to obey the directives of the Far East
ern Commission and not our War Department,” and that
“no process that could be issued from this court . . . would
have any effect on his action.” Tr. of Oral Arg. in Hirota v.
MacArthur, O. T. 1948, No. 239, pp. 42, 50, 51. Here, in
contrast, the Government acknowledges that our military
commanders do answer to the President.
Even if the Government is correct that the international
authority at issue in Hirota is no different from the inter
national authority at issue here, the present “circum
stances” differ in another respect. These cases concern
American citizens while Hirota did not, and the Court has
indicated that habeas jurisdiction can depend on citizen
ship. See Johnson v. Eisentrager, 339 U. S. 763, 781
(1950); Rasul v. Bush, 542 U. S. 466, 486 (2004)
(KENNEDY, J., concurring in judgment). See also Munaf,
482 F. 3d, at 584 (“[W]e do not mean to suggest that we
find the logic of Hirota especially clear or compelling,
particularly as applied to American citizens”); id., at 585
Cite as: 553 U. S. ____ (2008) 11
Opinion of the Court
(Randolph, J., concurring in judgment).3 “Under the fore
going circumstances,” we decline to extend our holding in
Hirota to preclude American citizens held overseas by
American soldiers subject to a United States chain of
command from filing habeas petitions.
III
We now turn to the question whether United States
district courts may exercise their habeas jurisdiction to
enjoin our Armed Forces from transferring individuals
detained within another sovereign’s territory to that sov
ereign’s government for criminal prosecution. The nature
of that question requires us to proceed “with the circum
spection appropriate when this Court is adjudicating
issues inevitably entangled in the conduct of our interna
tional relations.” Romero v. International Terminal Oper
ating Co., 358 U. S. 354, 383 (1959). Here there is the
further consideration that those issues arise in the context
of ongoing military operations conducted by American
Forces overseas. We therefore approach these questions
cognizant that “courts traditionally have been reluctant to
intrude upon the authority of the Executive in military
and national security affairs.” Department of Navy v.
Egan, 484 U. S. 518, 530 (1988).
In Omar, the District Court granted and the D. C. Cir
cuit upheld a preliminary injunction that, as interpreted
by the Court of Appeals, prohibited the United States from
——————
3 The circumstances in Hirota differ in yet another respect. The peti
tioners in that case sought an original writ, filing their motions for
leave to file habeas petitions “in this Court.” 338 U. S., at 198. There
is, however, some authority for the proposition that this Court has
original subject-matter jurisdiction only over “ ‘cases affecting ambas
sadors, other public ministers and consuls, and those in which a state
shall be a party,’ ” Marbury v. Madison, 1 Cranch 137, 174 (1803)
(quoting U. S. Const., Art. III, §2, cl. 2), and Congress had not granted
the Court appellate jurisdiction to review decisions of the International
Military Tribunal for the Far East.
12 MUNAF v. GEREN
Opinion of the Court
(1) effectuating “Omar’s transfer in any form, whether by
an official handoff or otherwise,” to Iraqi custody, 479
F. 3d, at 12; (2) sharing details concerning any decision to
release Omar with the Iraqi Government, id., at 13; and
(3) “presenting Omar to the [Iraqi courts] for trial,” id., at
14. This is not a narrow injunction. Even the habeas
petitioners do not defend it in its entirety. They acknowl
edge the authority of the Iraqi courts to begin criminal
proceedings against Omar and wisely concede that any
injunction “clearly need not include a bar on ‘information-
sharing.’ ” Brief for Habeas Petitioners 61. As Judge
Brown noted in her dissent, such a bar would impermissi
bly “enjoin the United States military from sharing infor
mation with an allied foreign sovereign in a war zone.”
Omar, supra, at 18.
We begin with the basics. A preliminary injunction is
an “extraordinary and drastic remedy,” 11A C. Wright, A.
Miller, & M. Kane, Federal Practice and Procedure §2948,
p. 129 (2d ed. 1995) (hereinafter Wright & Miller) (foot
notes omitted); it is never awarded as of right, Yakus v.
United States, 321 U. S. 414, 440 (1944). Rather, a party
seeking a preliminary injunction must demonstrate,
among other things, “a likelihood of success on the merits.”
Gonzales v. O Centro Espírita Beneficente União do Vege
tal, 546 U. S. 418, 428 (2006) (citing Mazurek v. Arm
strong, 520 U. S. 968, 972 (1997) (per curiam); Doran v.
Salem Inn, Inc., 422 U. S. 922, 931 (1975)). But one
searches the opinions below in vain for any mention of a
likelihood of success as to the merits of Omar’s habeas
petition. Instead, the District Court concluded that the
“jurisdictional issues” presented questions “so serious,
substantial, difficult and doubtful, as to make them fair
ground for litigation and thus for more deliberative inves
tigation.” Omar v. Harvey, 416 F. Supp. 2d 19, 23–24, 27
(DC 2006) (internal quotation marks omitted; emphasis
added).
Cite as: 553 U. S. ____ (2008) 13
Opinion of the Court
The D. C. Circuit made the same mistake. In that
court’s view, the “only question before [it] at th[at] stage of
the litigation relate[d] to the district court’s jurisdiction.”
479 F. 3d, at 11. As a result, the Court of Appeals held
that it “need not address” the merits of Omar’s habeas
claims: those merits had “no relevance.” Ibid.
A difficult question as to jurisdiction is, of course, no
reason to grant a preliminary injunction. It says nothing
about the “likelihood of success on the merits,” other than
making such success more unlikely due to potential im
pediments to even reaching the merits. Indeed, if all a
“likelihood of success on the merits” meant was that the
district court likely had jurisdiction, then preliminary
injunctions would be the rule, not the exception. In light
of these basic principles, we hold that it was an abuse of
discretion for the District Court to grant a preliminary
injunction on the view that the “jurisdictional issues” in
Omar’s case were tough, without even considering the
merits of the underlying habeas petition.
What we have said thus far would require reversal and
remand in each of these cases: The lower courts in Munaf
erred in dismissing for want of jurisdiction, and the lower
courts in Omar erred in issuing and upholding the pre
liminary injunction. There are occasions, however, when
it is appropriate to proceed further and address the mer
its. This is one of them.
Our authority to address the merits of the habeas peti
tioners’ claims is clear. Review of a preliminary injunction
“is not confined to the act of granting the injunctio[n], but
extends as well to determining whether there is any insu
perable objection, in point of jurisdiction or merits, to the
maintenance of [the] bill, and, if so, to directing a final
decree dismissing it.” City and County of Denver v. New
York Trust Co., 229 U. S. 123, 136 (1913). See also Deckert
v. Independence Shares Corp., 311 U. S. 282, 287 (1940)
(“ ‘If insuperable objection to maintaining the bill clearly
14 MUNAF v. GEREN
Opinion of the Court
appears, it may be dismissed and the litigation termi
nated’ ” (quoting Meccano, Ltd. v. John Wanamaker, N. Y.,
253 U. S. 136, 141 (1920))). This has long been the rule:
“By the ordinary practice in equity as administered in
England and this country,” a reviewing court has the
power on appeal from an interlocutory order “to examine
the merits of the case . . . and upon deciding them in favor
of the defendant to dismiss the bill.” North Carolina R.
Co. v. Story, 268 U. S. 288, 292 (1925). Indeed, “[t]he
question whether an action should be dismissed for failure
to state a claim is one of the most common issues that may
be reviewed on appeal from an interlocutory injunction
order.” 16 Wright & Miller, Jurisdiction and Related
Matters, §3921.1, at 32 (2d ed. 1996).
Adjudication of the merits is most appropriate if the
injunction rests on a question of law and it is plain that
the plaintiff cannot prevail. In such cases, the defendant
is entitled to judgment. See, e.g., Deckert, supra, at 287;
North Carolina R. Co., supra, at 292; City and County of
Denver, supra, at 136.
Given that the present cases involve habeas petitions
that implicate sensitive foreign policy issues in the context
of ongoing military operations, reaching the merits is the
wisest course. See Youngstown Sheet & Tube Co. v. Saw
yer, 343 U. S. 579, 584–585 (1952) (finding the case ripe
for merits review on appeal from stay of preliminary in
junction). For the reasons we explain below, the relief
sought by the habeas petitioners makes clear under our
precedents that the power of the writ ought not to be
exercised. Because the Government is entitled to judg
ment as a matter of law, it is appropriate for us to termi
nate the litigation now.
IV
The habeas petitioners argue that the writ should be
granted in their cases because they have “a legally en
Cite as: 553 U. S. ____ (2008) 15
Opinion of the Court
forceable right” not to be transferred to Iraqi authority for
criminal proceedings under both the Due Process Clause
and the Foreign Affairs Reform and Restructuring Act of
1998 (FARR Act), div. G, 112 Stat. 2681–761, and because
they are innocent civilians who have been unlawfully
detained by the United States in violation of the Due
Process Clause. Brief for Habeas Petitioners 48–52. With
respect to the transfer claim, petitioners request an in
junction prohibiting the United States from transferring
them to Iraqi custody. With respect to the unlawful deten
tion claim, petitioners seek “release”—but only to the
extent that release would not result in “unlawful” transfer
to Iraqi custody. Tr. of Oral Arg. 48. Both of these re
quests would interfere with Iraq’s sovereign right to “pun
ish offenses against its laws committed within its bor
ders.” Wilson, 354 U. S., at 529. We accordingly hold that
the detainees’ claims do not state grounds upon which
habeas relief may be granted, that the habeas petitions
should have been promptly dismissed, and that no injunc
tion should have been entered.
A
Habeas corpus is “governed by equitable principles.” Fay
v. Noia, 372 U. S. 391, 438 (1963). We have therefore
recognized that “prudential concerns,” Withrow v. Wil
liams, 507 U. S. 680, 686 (1993), such as comity and the
orderly administration of criminal justice, may “require a
federal court to forgo the exercise of its habeas corpus
power,” Francis v. Henderson, 425 U. S. 536, 539 (1976).
The principle that a habeas court is “not bound in every
case” to issue the writ, Ex parte Royall, 117 U. S. 241, 251
(1886), follows from the precatory language of the habeas
statute, and from its common-law origins. The habeas
statute provides only that a writ of habeas corpus “may be
granted,” §2241(a) (emphasis added), and directs federal
courts to “dispose of [habeas petitions] as law and justice
16 MUNAF v. GEREN
Opinion of the Court
require,” §2243. See Danforth v. Minnesota, 552 U. S. ___,
___ (2008) (slip op., at 13–14). Likewise, the writ did not
issue in England “as of mere course,” but rather required
the petitioner to demonstrate why the “extraordinary
power of the crown” should be exercised, 3 W. Blackstone,
Commentaries on the Laws of England 132 (1768); even
then, courts were directed to “do as to justice shall apper
tain,” 1 id., at 131 (1765). The question, therefore, even
where a habeas court has the power to issue the writ, is
“whether this be a case in which [that power] ought to be
exercised.” Ex parte Watkins, 3 Pet. 193, 201 (1830) (Mar
shall, C. J.).
At the outset, the nature of the relief sought by the
habeas petitioners suggests that habeas is not appropriate
in these cases. Habeas is at its core a remedy for unlawful
executive detention. Hamdi v. Rumsfeld, 542 U. S. 507,
536 (2004) (plurality opinion). The typical remedy for
such detention is, of course, release. See, e.g., Preiser v.
Rodriguez, 411 U. S. 475, 484 (1973) (“[T]he traditional
function of the writ is to secure release from illegal cus
tody”). But here the last thing petitioners want is simple
release; that would expose them to apprehension by Iraqi
authorities for criminal prosecution—precisely what peti
tioners went to federal court to avoid. At the end of the
day, what petitioners are really after is a court order
requiring the United States to shelter them from the
sovereign government seeking to have them answer for
alleged crimes committed within that sovereign’s borders.
The habeas petitioners do not dispute that they volun
tarily traveled to Iraq, that they remain detained within
the sovereign territory of Iraq today, or that they are
alleged to have committed serious crimes in Iraq. Indeed,
Omar and Munaf both concede that, if they were not in
MNF–I custody, Iraq would be free to arrest and prosecute
them under Iraqi law. See Tr. in Omar, No. 06–5126
(CADC), pp. 48–49, 59 (Sept. 11, 2006); Tr. in Mohammed,
Cite as: 553 U. S. ____ (2008) 17
Opinion of the Court
No. 06–1455 (DC), pp. 15–16 (Oct. 10, 2006). There is,
moreover, no question that Munaf is the subject of ongoing
Iraqi criminal proceedings and that Omar would be but for
the present injunction. Munaf was convicted by the CCCI,
and while that conviction was overturned on appeal, his
case was remanded to and is again pending before the
CCCI. The MNF–I referred Omar to the CCCI for prose
cution at which point he sought and obtained an injunc
tion that prohibits his prosecution. See 479 F. 3d, at 16,
n. 3 (Brown, J., dissenting in part) (“ ‘[Omar] has not yet
had a trial or even an investigative hearing in the CCCI
due to the district court’s unprecedented injunction’ ”
(citing Opposition to Petitioner’s Emergency Motion for
Injunctive Relief 18–19, in Munaf v. Harvey, No. 06–5324
(CADC, Oct. 25, 2006))).
Given these facts, our cases make clear that Iraq has a
sovereign right to prosecute Omar and Munaf for crimes
committed on its soil. As Chief Justice Marshall explained
nearly two centuries ago, “[t]he jurisdiction of the nation
within its own territory is necessarily exclusive and abso
lute.” Schooner Exchange v. McFaddon, 7 Cranch 116,
136 (1812). See Wilson, supra, at 529 (“A sovereign nation
has exclusive jurisdiction to punish offenses against its
laws committed within its borders, unless it expressly or
impliedly consents to surrender its jurisdiction”); Reid v.
Covert, 354 U. S. 1, 15, n. 29 (1957) (opinion of Black, J.)
(“[A] foreign nation has plenary criminal jurisdiction . . .
over all Americans . . . who commit offenses against its
laws within its territory”); Kinsella v. Krueger, 351 U. S.
470, 479 (1956) (nations have a “sovereign right to try and
punish [American citizens] for offenses committed within
their borders,” unless they “have relinquished [their]
jurisdiction” to do so).
This is true with respect to American citizens who travel
abroad and commit crimes in another nation whether or
not the pertinent criminal process comes with all the
18 MUNAF v. GEREN
Opinion of the Court
rights guaranteed by our Constitution. “When an Ameri
can citizen commits a crime in a foreign country he cannot
complain if required to submit to such modes of trial and
to such punishment as the laws of that country may pre
scribe for its own people.” Neely v. Henkel, 180 U. S. 109,
123 (1901).
The habeas petitioners nonetheless argue that the Due
Process Clause includes a “[f]reedom from unlawful trans
fer” that is “protected wherever the government seizes a
citizen.” Brief for Habeas Petitioners 48. We disagree.
Not only have we long recognized the principle that a
nation state reigns sovereign within its own territory, we
have twice applied that principle to reject claims that the
Constitution precludes the Executive from transferring a
prisoner to a foreign country for prosecution in an alleg
edly unconstitutional trial.
In Wilson, 354 U. S. 524, we reversed an injunction
similar to the one at issue here. During a cavalry exercise
at the Camp Weir range in Japan, Girard, a Specialist
Third Class in the United States Army, caused the death
of a Japanese woman. Id., at 525–526. After Japan in
dicted Girard, but while he was still in United States
custody, Girard filed a writ of habeas corpus in the United
States District Court for the District of Columbia. Ibid.
The District Court granted a preliminary injunction
against the United States, enjoining the “proposed deliv
ery of [Girard] to the Japanese Government.” Girard v.
Wilson, 152 F. Supp. 21, 27 (DC 1957). In the District
Court’s view, to permit the transfer to Japanese authority
would violate the rights guaranteed to Girard by the
Constitution. Ibid.
We granted certiorari, and vacated the injunction. 354
U. S., at 529–530. We noted that Japan had exclusive
jurisdiction “to punish offenses against its laws committed
within its borders,” unless it had surrendered that juris
diction. Id., at 529. Consequently, even though Japan
Cite as: 553 U. S. ____ (2008) 19
Opinion of the Court
had ceded some of its jurisdiction to the United States
pursuant to a bilateral Status of Forces Agreement, the
United States could waive that jurisdiction—as it had
done in Girard’s case—and the habeas court was without
authority to enjoin Girard’s transfer to the Japanese
authorities. Id., at 529–530.
Likewise, in Neely v. Henkel, supra, this Court held that
habeas corpus was not available to defeat the criminal
jurisdiction of a foreign sovereign, even when application
of that sovereign’s law would allegedly violate the Consti
tution. Neely—the habeas petitioner and an American
citizen—was accused of violating Cuban law in Cuba. Id.,
at 112–113. He was arrested and detained in the United
States. Id., at 113. The United States indicated its intent
to extradite him, and Neely filed suit seeking to block his
extradition on the grounds that Cuban law did not provide
the panoply of rights guaranteed him by the Constitution
of the United States. Id., at 122. We summarily rejected
this claim: “The answer to this suggestion is that those
[constitutional] provisions have no relation to crimes
committed without the jurisdiction of the United States
against the laws of a foreign country.” Ibid. Neely alleged
no claim for which a “discharge on habeas corpus” could
issue. Id., at 125. Accordingly, the United States was free
to transfer him to Cuban custody for prosecution.
In the present cases, the habeas petitioners concede that
Iraq has the sovereign authority to prosecute them for
alleged violations of its law, yet nonetheless request an
injunction prohibiting the United States from transferring
them to Iraqi custody. But as the foregoing cases make
clear, habeas is not a means of compelling the United
States to harbor fugitives from the criminal justice system
of a sovereign with undoubted authority to prosecute
them.
Petitioners’ “release” claim adds nothing to their “trans
fer” claim. That claim fails for the same reasons the
20 MUNAF v. GEREN
Opinion of the Court
transfer claim fails, given that the release petitioners seek
is release in a form that would avoid transfer. See Tr. of
Oral Arg. 47–48; App. 40 (coupling Munaf’s claim for
release with a request for order requiring the United
States to bring him to a U. S. court); App. 123 (same with
respect to Omar). Such “release” would impermissibly
interfere with Iraq’s “exclusive jurisdiction to punish
offenses against its laws committed within its borders,”
Wilson, supra, at 529; the “release” petitioners seek is
nothing less than an order commanding our forces to
smuggle them out of Iraq. Indeed, the Court of Appeals in
Omar’s case took the extraordinary step of upholding an
injunction that prohibited the Executive from releasing
Omar—the quintessential habeas remedy—if the United
States shared information about his release with its mili
tary ally, Iraq. 479 F. 3d, at 13. Habeas does not require
the United States to keep an unsuspecting nation in the
dark when it releases an alleged criminal insurgent within
its borders.
Moreover, because Omar and Munaf are being held by
United States Armed Forces at the behest of the Iraqi
Government pending their prosecution in Iraqi courts,
Mohammed, 456 F. Supp. 2d, at 117, release of any kind
would interfere with the sovereign authority of Iraq “to
punish offenses against its laws committed within its
borders,” Wilson, supra, at 529. This point becomes clear
given that the MNF–I, pursuant to its U. N. mandate, is
authorized to “take all necessary measures to contribute to
the maintenance of security and stability in Iraq,” App. G
to Pet. for Cert. in No. 07–394, p. 74a, ¶10, and specifically
to provide for the “internment [of individuals in Iraq]
where this is necessary for imperative reasons of security,”
id., at 86a.
While the Iraqi Government is ultimately “responsible
for [the] arrest, detention and imprisonment” of individu
als who violate its laws, S. C. Res. 1790, Annex I, ¶4, p. 6,
Cite as: 553 U. S. ____ (2008) 21
Opinion of the Court
U. N. Doc. S/RES/1790 (Dec. 18, 2007), the MNF–I main
tains physical custody of individuals like Munaf and Omar
while their cases are being heard by the CCCI, Moham
med, supra, at 117. Indeed, Munaf is currently held at
Camp Cropper pursuant to the express order of the Iraqi
Courts. See In re Hikmat, No. 19/Pub. Comm’n/2007, at 5
(directing that Munaf “remain in custody pending the
outcome” of further Iraqi proceedings). As that court order
makes clear, MNF–I detention is an integral part of the
Iraqi system of criminal justice. MNF–I forces augment
the Iraqi Government’s peacekeeping efforts by function
ing, in essence, as its jailor. Any requirement that the
MNF–I release a detainee would, in effect, impose a re
lease order on the Iraqi Government.
The habeas petitioners acknowledge that some interfer
ence with a foreign criminal system is too much. They
concede that “it is axiomatic that an American court does
not provide collateral review of proceedings in a foreign
tribunal.” Brief for Habeas Petitioners 39 (citing Republic
of Austria v. Altmann, 541 U. S. 677, 700 (2004)). We
agree, but see no reason why habeas corpus should permit
a prisoner detained within a foreign sovereign’s territory
to prevent a trial from going forward in the first place. It
did not matter that the habeas petitioners in Wilson and
Neely had not been convicted. 354 U. S., at 525–526; 180
U. S., at 112–113. Rather, “the same principles of comity
and respect for foreign sovereigns that preclude judicial
scrutiny of foreign convictions necessarily render invalid
attempts to shield citizens from foreign prosecution in
order to preempt such nonreviewable adjudications.”
Omar, 479 F. 3d, at 17 (Brown, J., dissenting in part).
To allow United States courts to intervene in an ongoing
foreign criminal proceeding and pass judgment on its
legitimacy seems at least as great an intrusion as the
plainly barred collateral review of foreign convictions. See
Banco Nacional de Cuba v. Sabbatino, 376 U. S. 398, 417–
22 MUNAF v. GEREN
Opinion of the Court
418 (1964) (“ ‘To permit the validity of the acts of one
sovereign State to be reexamined and perhaps condemned
by the courts of another would very certainly “imperil the
amicable relations between governments and vex the
peace of nations” ’ ” (quoting Oetjen v. Central Leather Co.,
246 U. S. 297, 303–304 (1918); punctuation omitted)).4
There is of course even more at issue here: Neither
Neely nor Wilson concerned individuals captured and
detained within an ally’s territory during ongoing hostili
ties involving our troops. Neely involved a charge of em
bezzlement; Wilson the peacetime actions of a serviceman.
Yet in those cases we held that the Constitution allows the
Executive to transfer American citizens to foreign authori
ties for criminal prosecution. It would be passing strange
to hold that the Executive lacks that same authority
where, as here, the detainees were captured by our Armed
Forces for engaging in serious hostile acts against an ally
in what the Government refers to as “an active theater of
combat.” Brief for Federal Parties 16.
Such a conclusion would implicate not only concerns
about interfering with a sovereign’s recognized prerogative
to apply its criminal law to those alleged to have commit
ted crimes within its borders, but also concerns about
unwarranted judicial intrusion into the Executive’s ability
to conduct military operations abroad. Our constitutional
framework “requires that the judiciary be as scrupulous
not to interfere with legitimate Army matters as the Army
——————
4 The habeas petitioners claim that the injunction only bars Omar’s
presentation to the Iraqi courts and that the CCCI trial can go forward
in Omar’s absence. The injunction is not so easily narrowed. It was
entered on the theory that Omar might be “presented to the CCCI and
in that same day, be tried, [and] convicted,” thus depriving the United
States district courts of jurisdiction. Omar v. Harvey, 416 F. Supp. 2d
19, 29 (DC 2006). Petitioners’ interpretation makes no sense under
that theory: If a conviction would deprive the habeas court of jurisdic
tion, a trial, with or without the defendant, could result in just such a
jurisdiction-divesting order.
Cite as: 553 U. S. ____ (2008) 23
Opinion of the Court
must be scrupulous not to intervene in judicial matters.”
Orloff v. Willoughby, 345 U. S. 83, 94 (1953). Those who
commit crimes within a sovereign’s territory may be trans
ferred to that sovereign’s government for prosecution;
there is hardly an exception to that rule when the crime at
issue is not embezzlement but unlawful insurgency di
rected against an ally during ongoing hostilities involving
our troops.
B
1
Petitioners contend that these general principles are
trumped in their cases because their transfer to Iraqi
custody is likely to result in torture. This allegation was
raised in Munaf’s petition for habeas, App. 39, ¶46, but
not in Omar’s. Such allegations are of course a matter of
serious concern, but in the present context that concern is
to be addressed by the political branches, not the judici
ary. See M. Bassiouni, International Extradition: United
States Law and Practice 921 (2007) (“Habeas corpus has
been held not to be a valid means of inquiry into the
treatment the relator is anticipated to receive in the re
questing state”).
This conclusion is reflected in the cases already cited.
Even with respect to claims that detainees would be de
nied constitutional rights if transferred, we have recog
nized that it is for the political branches, not the judiciary,
to assess practices in foreign countries and to determine
national policy in light of those assessments. Thus, the
Court in Neely concluded that an American citizen who
“commits a crime in a foreign country” “cannot complain if
required to submit to such modes of trial and to such
punishment as the laws of that country may prescribe for
its own people,” but went on to explain that this was true
“unless a different mode be provided for by treaty stipula
tion between that country and the United States.” 180
24 MUNAF v. GEREN
Opinion of the Court
U. S., at 123. Diplomacy was the means of addressing the
petitioner’s concerns.
By the same token, while the Court in Wilson stated the
general principle that a “sovereign nation has exclusive
jurisdiction to punish offenses against its laws committed
within its borders,” it recognized that this rule could be
altered by diplomatic agreement in light of particular
concerns—as it was in that case—and by a decision of the
Executive to waive jurisdiction granted under that agree
ment—as it was in that case. 354 U. S., at 529. See also
Kinsella, 351 U. S., at 479 (alteration of jurisdictional rule
through “carefully drawn agreements”). This recognition
that it is the political branches that bear responsibility for
creating exceptions to the general rule is nothing new; as
Chief Justice Marshall explained in the Schooner Ex
change, “exemptions from territorial jurisdiction . . . must
be derived from the consent of the sovereign of the terri
tory” and are “rather questions of policy than of law, that
they are for diplomatic, rather than legal discussion.” 7
Cranch, at 143, 146. The present concerns are of the same
nature as the loss of constitutional rights alleged in Wil
son and Neely, and are governed by the same principles.5
The Executive Branch may, of course, decline to surren
der a detainee for many reasons, including humanitarian
ones. Petitioners here allege only the possibility of mis
treatment in a prison facility; this is not a more extreme
case in which the Executive has determined that a de
tainee is likely to be tortured but decides to transfer him
——————
5 The United States has in fact entered into treaties that provide
procedural protections to American citizens tried in other nations. See,
e.g., North Atlantic Treaty: Status of Forces, June 19, 1951, 4 U. S. T.
1802, T. I. A. S. No. 2846, Art. VII, ¶9 (guaranteeing arrested members
of the Armed Forces and their civilian dependents, inter alia, an
attorney, an interpreter, and a prompt and speedy trial, as well as the
right to confront witnesses, obtain favorable witnesses, and communi
cate with a representative of the United States).
Cite as: 553 U. S. ____ (2008) 25
Opinion of the Court
anyway. Indeed, the Solicitor General states that it is the
policy of the United States not to transfer an individual in
circumstances where torture is likely to result. Brief for
Federal Parties 47; Reply Brief for Federal Parties 23. In
these cases the United States explains that, although it
remains concerned about torture among some sectors of
the Iraqi Government, the State Department has deter
mined that the Justice Ministry—the department that
would have authority over Munaf and Omar—as well as
its prison and detention facilities have “ ‘generally met
internationally accepted standards for basic prisoner
needs.’ ” Ibid. The Solicitor General explains that such
determinations are based on “the Executive’s assessment
of the foreign country’s legal system and . . . the Execu
tive[’s] . . . ability to obtain foreign assurances it considers
reliable.” Brief for Federal Parties 47.
The Judiciary is not suited to second-guess such deter
minations—determinations that would require federal
courts to pass judgment on foreign justice systems and
undermine the Government’s ability to speak with one
voice in this area. See The Federalist No. 42, p. 279 (J.
Cooke ed. 1961) (J. Madison) (“If we are to be one nation in
any respect, it clearly ought to be in respect to other na
tions”). In contrast, the political branches are well situ
ated to consider sensitive foreign policy issues, such as
whether there is a serious prospect of torture at the hands
of an ally, and what to do about it if there is. As Judge
Brown noted, “we need not assume the political branches
are oblivious to these concerns. Indeed, the other
branches possess significant diplomatic tools and leverage
the judiciary lacks.” 479 F. 3d, at 20, n. 6 (dissenting
opinion).
Petitioners briefly argue that their claims of potential
torture may not be readily dismissed on the basis of these
principles because the FARR Act prohibits transfer when
torture may result. Brief for Habeas Petitioners 51–52.
26 MUNAF v. GEREN
Opinion of the Court
Neither petitioner asserted a FARR Act claim in his peti
tion for habeas, and the Act was not raised in any of the
certiorari filings before this Court. Even in their merits
brief in this Court, the habeas petitioners hardly discuss
the issue. Id., at 17, 51–52, 57–58. The Government
treats the issue in kind. Reply Brief for Federal Parties
24–26. Under such circumstances we will not consider the
question.6
2
Finally, the habeas petitioners raise the additional
argument that the United States may not transfer a de
tainee to Iraqi custody, not because it would be unconsti
——————
6 We hold that these habeas petitions raise no claim for relief under
the FARR Act and express no opinion on whether Munaf and Omar
may be permitted to amend their respective pleadings to raise such a
claim on remand. Even if considered on the merits, several issues
under the FARR Act claim would have to be addressed. First, the Act
speaks to situations where a detainee is being “returned” to “a country.”
FARR Act §2242(a), 112 Stat. 2681–822 (“It shall be the policy of the
United States not to expel, extradite, or otherwise effect the involun
tary return of any person to a country in which there are substantial
grounds for believing the person would be in danger of being subjected
to torture, regardless of whether the person is physically present in the
United States”); see also Convention Against Torture and Other Cruel,
Inhuman or Degrading Treatment or Punishment, 1465 U. N. T. S. 85,
Art. 3, S. Treaty Doc. No. 20, 100th Cong., 2d Sess., p. 6 (1988) (“No
State Party shall expel, return (‘refouler’) or extradite a person to
another State where there are substantial grounds for believing that he
would be in danger of being subjected to torture” (emphasis added)). It
is not settled that the Act addresses the transfer of an individual
located in Iraq to the Government of Iraq; arguably such an individual
is not being “returned” to “a country”—he is already there.
Second, claims under the FARR Act may be limited to certain immi
gration proceedings. See §2242(d), 112 Stat. 2681–822 (“[N]othing in
this section shall be construed as providing any court jurisdiction to
consider or review claims raised under the Convention or this section,
or any other determination made with respect to the application of the
policy set forth in [this section], except as part of the review of a final
order of removal pursuant to [8 U. S. C. §1252 (2000 ed. and Supp. V]”).
Cite as: 553 U. S. ____ (2008) 27
Opinion of the Court
tutional to do so, but because the “[G]overnment may not
transfer a citizen without legal authority.” Brief for Ha
beas Petitioners 54. The United States, they claim, bears
the burden of “identify[ing] a treaty or statute that per
mits it to transfer the[m] to Iraqi custody.” Id., at 49.
The habeas petitioners rely prominently on Valentine v.
United States ex rel. Neidecker, 299 U. S. 5 (1936), where
we ruled that the Executive may not extradite a person
held within the United States unless “legal authority” to
do so “is given by act of Congress or by the terms of a
treaty,” id., at 9. But Valentine is readily distinguishable.
It involved the extradition of an individual from the
United States; this is not an extradition case, but one
involving the transfer to a sovereign’s authority of an
individual captured and already detained in that sover
eign’s territory. In the extradition context, when a “fugi
tive criminal” is found within the United States, “ ‘there is
no authority vested in any department of the government
to seize [him] and surrender him to a foreign power,’ ” in
the absence of a pertinent constitutional or legislative
provision. Ibid. But Omar and Munaf voluntarily trav
eled to Iraq and are being held there. They are therefore
subject to the territorial jurisdiction of that sovereign, not
of the United States. Moreover, as we have explained, the
petitioners are being held by the United States, acting as
part of MNF–I, at the request of and on behalf of the Iraqi
Government. It would be more than odd if the Govern
ment had no authority to transfer them to the very sover
eign on whose behalf, and within whose territory, they are
being detained.
The habeas petitioners further contend that this Court’s
decision in Wilson supports their argument that the Ex
ecutive lacks the discretion to transfer a citizen absent a
treaty or statute. Brief for Habeas Petitioners 54–55.
Quite the opposite. Wilson forecloses it. The only “author
ity” at issue in Wilson—a Status of Forces Agreement—
28 MUNAF v. GEREN
Opinion of the Court
seemed to give the habeas petitioner in that case a right to
be tried by an American military tribunal, not a Japanese
court. 354 U. S., at 529. Nevertheless, in light of the
background principle that Japan had a sovereign interest
in prosecuting crimes committed within its borders, this
Court found no “constitutional or statutory” impediment to
the United States’s waiver of its jurisdiction under the
agreement. Id., at 530.
* * *
Munaf and Omar are alleged to have committed hostile
and warlike acts within the sovereign territory of Iraq
during ongoing hostilities there. Pending their criminal
prosecution for those offenses, Munaf and Omar are being
held in Iraq by American forces operating pursuant to a
U. N. Mandate and at the request of the Iraqi Govern
ment. Petitioners concede that Iraq has a sovereign right
to prosecute them for alleged violations of its law. Yet
they went to federal court seeking an order that would
allow them to defeat precisely that sovereign authority.
Habeas corpus does not require the United States to shel
ter such fugitives from the criminal justice system of the
sovereign with authority to prosecute them.
For all the reasons given above, petitioners state no
claim in their habeas petitions for which relief can be
granted, and those petitions should have been promptly
dismissed. The judgments below and the injunction en
tered against the United States are vacated, and the cases
are remanded for further proceedings consistent with this
opinion.
It is so ordered.
Cite as: 553 U. S. ____ (2008) 1
SOUTER, J., concurring
SUPREME COURT OF THE UNITED STATES
_________________
Nos. 06–1666 and 07–394
_________________
MOHAMMAD MUNAF, ET AL., PETITIONERS
06–1666 v.
PETE GEREN, SECRETARY OF THE
ARMY, ET AL.
PETE GEREN, SECRETARY OF THE ARMY, ET AL.,
PETITIONERS
07–394 v.
SANDRA K. OMAR AND AHMED S. OMAR, AS
NEXT FRIENDS OF SHAWQI AHMAD OMAR
ON WRITS OF CERTIORARI TO THE UNITED STATES COURT OF
APPEALS FOR THE DISTRICT OF COLUMBIA CIRCUIT
[June 12, 2008]
JUSTICE SOUTER, with whom JUSTICE GINSBURG and
JUSTICE BREYER join, concurring.
The Court holds that “[u]nder circumstances such as
those presented here, . . . habeas corpus provides petition-
ers with no relief.” Ante, at 2. The Court’s opinion makes
clear that those circumstances include the following: (1)
Omar and Munaf “voluntarily traveled to Iraq.” Ante, at
16. They are being held (2) in the “territory” of (3) an
“all[y]” of the United States, ante, at 22, (4) by our troops,
see ante, at 8, (5) “during ongoing hostilities” that (6)
“involv[e] our troops,” ante, at 22. (7) The government of a
foreign sovereign, Iraq, has decided to prosecute them “for
crimes committed on its soil.” Ante, at 17. And (8) “the
State Department has determined that . . . the department
that would have authority over Munaf and Omar . . . as
well as its prison and detention facilities have generally
2 MUNAF v. GEREN
SOUTER, J., concurring
met internationally accepted standards for basic prisoner
needs.” Ante, at 25 (internal quotation marks omitted).
Because I consider these circumstances essential to the
Court’s holding, I join its opinion.
The Court accordingly reserves judgment on an “ex-
treme case in which the Executive has determined that a
detainee [in United States custody] is likely to be tortured
but decides to transfer him anyway.” Ante, at 24–25. I
would add that nothing in today’s opinion should be read
as foreclosing relief for a citizen of the United States who
resists transfer, say, from the American military to a
foreign government for prosecution in a case of that sort,
and I would extend the caveat to a case in which the prob-
ability of torture is well documented, even if the Executive
fails to acknowledge it. Although the Court rightly points
out that any likelihood of extreme mistreatment at the
receiving government’s hands is a proper matter for the
political branches to consider, see ante, at 23–24, if the
political branches did favor transfer it would be in order to
ask whether substantive due process bars the Government
from consigning its own people to torture. And although
the Court points out that habeas is aimed at securing
release, not protective detention, see ante, at 16, habeas
would not be the only avenue open to an objecting pris-
oner; “where federally protected rights [are threatened], it
has been the rule from the beginning that courts will be
alert to adjust their remedies so as to grant the necessary
relief,” Bell v. Hood, 327 U. S. 678, 684 (1946).