GRSC Armed Forces (Earth-2042)

The GRSC Armed Forces are the military forces of the Galactic Republic Space Command, consisting of the Air Force, Army, Marine Corps, and Navy, which served as a joint air, land, and space force. Following the end of the Clone Wars and the formation of the Galactic Empire, the GRSC Armed Forces was reformed into the Imperial Armed Forces.

Source

 * https://www.halopedia.org/UNSC_Armed_Forces