civilian American citizens

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.