United States Marine Corps Women's Reserve (Reserve) was the World War II women's branch of the United States Marine Corps Reserve. It was authorized by the U.S. Congress and signed into law by President Franklin D. Roosevelt on 30 July 1942. Its purpose was to release officers and men for combat, and to replace them with women in U.S. shore stations for the duration of the war plus six months. Ruth Cheney Streeter was appointed the first director. The Reserve did not have an official nickname as did the other World War II women's military services.