The official Air Force Birthday is recognized as September 18, 1947, which is the date of the passage of the National Security Act of 1947. That legislation created what would later become to known as the United States Department of Defense. This established the United States Air Force as a separate branch of military service.
Marine Corps Birthday - Military.com
It is on 10 November of every year that our Nation, our Corps and our Marines pay tribute to all the Marine Corps Birthday symbolizes.
U.S. Coast Guard
U.S. Coast Guard Birthday - Military.com
Each August 4 the U.S. Coast Guard celebrates its birthday. The Coast Guard is one of America's five armed forces and traces its founding to Aug. 4, 1790, when the first Congress authorized the construction of 10 vessels to enforce tariff and trade laws, prevent smuggling, and protect the collection of federal revenue.