The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six armed forces of the United States and one of the eight uniformed services of the United States. It is also one of two independent space forces in the world. The United States Space Force traces its origins to the Air Force, Army, and Navy's military space programs created during the beginning of the Cold War. US military space forces first participated in combat operations during the Vietnam War and have participated in every U.S.
https://en.wikipedia.org/wiki/United_States_Space_Force