Respondents, who are nonresident enemy aliens, were captured in China by the United States Army and tried and convicted in China by an American military commission for violations of the laws of war committed in China prior to their capture. They were transported to the American-occupied part of Germany and imprisoned there in the custody of the Army. At no time were they within the territorial jurisdiction of any American civil court. Claiming that their trial, conviction and imprisonment violated Articles I and III, the Fifth Amendment, and other provisions of our Constitution, laws of the United States and provisions...