Treaties and other international acts series. 7880. Refugee relief in Republic of Viet-Nam, Laos, Khmer Republic, agreements between United States and International Committee of Red Cross, amending agreement of United States signed Geneva May 1, 1974; [entered into force May 1, 1974], and signed Geneva and Washington May 17 and June 28, 1974; [entered into force June 28, 1974].