civilian American citizen

As used in subsections (b) and (f) of this section, the term "civilian American citizen" means any person who, being then a citizen of the United States, was captured by the Imperial Japanese Government on or after December 7, 1941, at Midway, Guam, Wake Island, the Philippine Islands, or any Territory or possession of the United States attacked or invaded by such government, or while in transit to or from any such place, or who went into hiding at any such place in order to avoid capture or internment by such government; except (1) a person who at any time voluntarily gave aid to, collaborated with, or in any manner served such government, or (2) a person who at the time of his capture or entrance into hiding was a regularly appointed, enrolled, enlisted, or inducted member of any military or naval force.

the term "civilian American citizen" means any person who, being then a citizen of the United States, was captured in Southeast Asia during the Vietnam conflict by any force hostile to the United States, or who went into hiding in Southeast Asia, in order to avoid capture or internment by any such hostile force, except (i) a person who voluntarily, knowingly, and without duress, gave aid to or collaborated with or in any manner served any such hostile force, or (ii) a regularly appointed, enrolled, enlisted, or inducted member of the Armed Forces of the United States.