339 U.S. 763 (1950)
In 1945, twenty-one German nationals who had been in the service of German armed forces or civilian agencies in China were taken into custody by the United States Army following the Japanese surrender.1
These individuals had continued military activity against the United States after the German High Command executed an unconditional surrender on May 8, 1945, but before the Japanese surrender, principally by collecting and furnishing intelligence concerning American forces to the Japanese armed forces.2
The prisoners were tried and convicted by a Military Commission constituted by the Commanding General at Nanking pursuant to authority delegated from the Commanding General, United States Forces, China Theatre, and the Joint Chiefs of Staff.3 The Commission sat in China with the express consent of the Chinese Government, conducted proceedings wholly under American auspices, and imposed sentences that were reviewed and approved with immaterial modification by military reviewing authority.4
Following conviction the prisoners were repatriated to Germany to serve their sentences at Landsberg Prison, an American Army facility under the Commanding General, Third United States Army, and the Commanding General, European Command.5 Their immediate custodian was the prison commandant, an American Army officer not named as a respondent.6
The prisoners filed petitions for writs of habeas corpus in the District Court of the District of Columbia, naming as respondents the Secretary of Defense, Secretary of the Army, Chief of Staff of the Army, and the Joint Chiefs of Staff.7 The petitions alleged that the trial, conviction, and imprisonment violated Articles I and III of the Constitution, the Fifth Amendment, other constitutional and statutory provisions, and the Geneva Convention.8
The District Court dismissed the petitions on the authority of Ahrens v. Clark.9 The Court of Appeals reversed, reinstated the petitions, and remanded for further proceedings.10 The Supreme Court granted certiorari because of the importance of the holdings to judicial administration and military operations.11
Whether United States civil courts have jurisdiction to entertain petitions for writs of habeas corpus filed by enemy aliens who were captured, tried, convicted, and imprisoned entirely outside the territorial jurisdiction of the United States?12
The writ of habeas corpus extends only to persons within the territorial jurisdiction of the United States; enemy aliens captured, tried, convicted, and imprisoned abroad have no constitutional or statutory right to the writ in United States civil courts.13
No. The twenty-one German nationals remained outside United States territory at every stage.14 They served in China, were captured there after the Japanese surrender, tried by a Military Commission sitting in China with Chinese consent, and imprisoned at Landsberg Prison in Germany under the Commanding General, European Command.15 The District Court of the District of Columbia therefore lacked jurisdiction under the rule of Ahrens v. Clark.16 The Court of Appeals erred in extending the writ on the theory that any deprivation of liberty by United States officials anywhere triggers judicial power.17
Production of the prisoners would require allocation of shipping, guards, and rations while diverting field commanders from military duties.18 This result is unsupported by constitutional text, statutes, or historical practice.19
United States civil courts lack jurisdiction to entertain habeas corpus petitions from enemy aliens captured, tried, convicted, and imprisoned entirely outside United States territory.20
Related opinions on this issue
Justice Black dissented from the majority's conclusion that overseas imprisonment by United States military authorities precludes habeas corpus jurisdiction in federal courts.21 He maintained that the executive branch cannot deprive courts of their power to review the legality of convictions simply by choosing to hold prisoners abroad.22 Black pointed out that the Quirin and Yamashita decisions upheld the availability of habeas corpus without any dependence on the territorial location of the prisoners.23
He argued that the Constitution's guarantee against illegal imprisonment must follow American authority wherever it is exercised, ensuring that military tribunals remain subject to judicial oversight even in occupied territories after hostilities have ended.24 This approach, Black concluded, upholds the principle of equal justice under law for all persons subject to United States power.25
Whether the Fifth Amendment applies to nonresident enemy aliens tried and imprisoned abroad by United States military authorities for offenses against the laws of war?26
The Fifth Amendment's protections, including the requirement of grand-jury indictment and due process, do not extend to nonresident enemy aliens engaged in hostile service against the United States outside its territory.27
No. The prisoners were enemy aliens who remained in the service of German forces or agencies in China after the May 8, 1945 unconditional surrender and continued furnishing intelligence to Japanese forces.28 The Fifth Amendment's text and history demonstrate that it was never intended to confer rights on enemy belligerents located abroad.29 Extending it would place such enemies in a more protected position than American soldiers subject to military discipline.30 It would require the same jury-trial guarantees under the Sixth Amendment, rendering military commissions impossible in active theaters.31
The Fifth Amendment does not apply to nonresident enemy aliens tried and imprisoned abroad by United States military authorities for offenses against the laws of war.32
Whether federal courts may review the jurisdiction of a military commission that sat in China and convicted German nationals of continuing hostilities after the German surrender?33
Federal courts may inquire only whether a military commission was lawfully constituted and possessed jurisdiction over the offense charged; they may not reexamine the commission's findings of fact or its application of the laws of war.34
No. The petition alleged that the commission lacked jurisdiction because no hostilities existed in China and because of treaties between the United States and China.35 Yet the record shows the commission was created by proper delegation from the Joint Chiefs of Staff, sat with Chinese consent, and tried offenses consisting of continued military activity after the German surrender.36 Once lawful authority to convene the commission is established, errors in deciding whether the laws of war applied or whether the evidence proved a violation are for military reviewing authorities alone, not for civil courts.37
Federal courts may not review the jurisdiction of the military commission beyond confirming its lawful constitution and subject-matter authority.38
Whether the Geneva Convention of 1929 provides a basis for habeas corpus relief in United States courts to enemy aliens held abroad after conviction by a military commission?39
The Geneva Convention of 1929 governs treatment of prisoners of war through political and military channels and does not confer enforceable individual rights in United States civil courts that would support habeas corpus relief.40
No. The prisoners invoked Articles 60 and 63 of the Convention concerning notice to the protecting power and trial by the same procedure as members of the detaining power's forces.41 Those articles apply only to disciplinary offenses committed during captivity, not to trials for war crimes committed before capture.42 Article 75 expressly permits detention until the end of proceedings and completion of punishment.43 This confirms that the Convention channels enforcement through protests by protecting powers rather than through judicial intervention in United States courts.44
The Geneva Convention of 1929 does not provide a basis for habeas corpus relief in United States courts to enemy aliens held abroad after conviction by a military commission.45