National Guard Birthday
Dec. 13, 2023
Founded in 1636, the National Guard is a reserve military force composed of National Guard units of each state and the territories of Guam, the Virgin Islands, Puerto Rico and the District of Columbia. Most guardsmen hold civilian jobs while serving part time. National Guard units are under the dual control of the state and the federal government.
Space Force Birthday
Dec. 20, 2023
Founded in 2019, the Space Force is the newest branch of the U.S. Armed Forces. It was established within the Department of the Air Force, meaning the secretary of the Air Force has overall responsibility under the guidance and direction of the secretary of defense.