<P> The term "armed forces" means the Army, Navy, Air Force, Marine Corps, and Coast Guard . </P> <P> The Coast Guard is further defined by Title 14 of the United States Code: </P> <P> The Coast Guard as established January 28, 1915, shall be a military service and a branch of the armed forces of the United States at all times . The Coast Guard shall be a service in the Department of Homeland Security, except when operating as a service in the Navy . </P> <P> Coast Guard organization and operation is as set forth in Title 33 of the Code of Federal Regulations . </P>

When did the coast guard became a military branch