On the recordNovember 29, 2012
It is. As part of that point, it cites the Quirin case, which says: Citizenship in the United States of an enemy belligerent does not relieve him from the consequences of a belligerency which is unlawful because in violation of the law of war. And here are the key words: Citizens who associate themselves with the military arm of an enemy government, and with its aid, guidance and direction enter this country bent on hostile acts, are enemy belligerents within the meaning of the Hague Convention.





