In 1955, Califano enlisted in the
United States Navy as an
officer candidate. He was commissioned an
ensign in November 1955, served three years in the
Office of the Judge Advocate General in
Washington, D.C., and was released to inactive duty in October 1958, as a
lieutenant. He associated with the law firm of
Dewey Ballantine in New York City from October 1958, until April 1961. In April 1961, Califano became Special Assistant to the General Counsel of the
U. S. Department of Defense. In July 1962, he was appointed Special Assistant to the
United States Secretary of the Army. On July 1, 1963, he was appointed General Counsel of the Army. He also served as Special Assistant to the Secretary of the Army for Civil Functions, supervising the
U.S. Army Corps of Engineers' Civil Works Program and was a member of the President's
Appalachian Regional Commission. In early 1964, Califano was selected to serve as the principal legal advisor to the United States Delegation to the Investigating Committee of the
Organization of American States on the Panama riots of January 1964. Subsequently, he was also selected to present the United States case before the
International Commission of Jurists during hearings held in
Panama dealing with those riots. In recognition of his work as General Counsel of the Department of the Army, Califano was awarded the
Distinguished Civilian Service Medal, the highest civilian award of the Army. On April 1, 1964, Califano was appointed Special Assistant to the Secretary and Deputy Secretary of Defense. He had special responsibilities for Department of Defense liaison with the
Office of the President of the United States. He also acted as Executive Secretary of the President's Advisory Committee on
Supersonic Transport, as the Department of Defense representative on the President's Committee on the Economic Impact of Defense and Disarmament, and as a member of the Federal Radiation Council. In recognition of his work as the Special Assistant to the Secretary and Deputy Secretary of Defense, Califano was awarded the
Defense Distinguished Service Medal of the Department of Defense. Between March 21 and 25, 1965, Califano was assigned to monitor the progress of the historic
March from Selma to Montgomery which helped ensure the passage of the landmark
Voting Rights Act of 1965. Califano was appointed Special Assistant to President
Lyndon B. Johnson on July 26, 1965. In this position, Califano served as LBJ's chief domestic aide, developing the President's legislative program as well as helping coordinate economic policies and handling domestic crises. He also worked on a variety of domestic problems, including
labor-management relations,
balance of payments,
health care,
education,
environmental and
urban issues, and
civil rights. He served in this position until January 20, 1969. While in this post,
The New York Times called him "The Deputy President for Domestic Affairs." ==Non-military career==