an independent US government organization that sends Americans, usually young adults, to work without pay in poorer countries. President John F Kennedy began it in 1961 with the aim of helping other countries in the fields of health, education, farming, etc. and so developing international friendship.
PEACE CORPS
Meaning of PEACE CORPS in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005