civilian American citizens
(1) As used in this subsection, the term “civilian American citizens” means any person who, being then a citizen of the United States, was captured in Korea on or after June 25, 1950 , by any hostile force with which the Armed Forces of the United States were actually engaged in armed conflict subsequent to such date and prior to August 21, 1954 , or who went into hiding in Korea in order to avoid capture or internment by any such hostile force; except (A) a person who at any time voluntarily, knowingly, and without duress, gave aid to or collaborated with or in any manner served any such hostile force, or (B) a regularly appointed, enrolled, enlisted, or inducted member of the Armed Forces of the United States.