November 1925, the Army Amateur Radio System (AARS) was formed by a few
dedicated pioneers in the United States Army Signal Corps.
continued until the start of World War II when operations were suspended. Army amateur radio was authorized to resume
in 1946 and the Army Amateur Radio System was reactivated and
functioned as such until 1948 when the Army and Air Force established the
Military Amateur Radio System, later renamed the Military Affiliate Radio
System (MARS). In 1962, the Navy-Marine
Corps MARS program was
launched making MARS a joint service program.