Reserve Officers' Training Corps

The Reserve Officers' Training Corps (ROTC or ) is a group of college and university-based officer training programs for training commissioned officers of the United States Armed Forces. While ROTC graduate officers serve in all branches of the U.S. military, the U.S. Marine Corps, the U.S. Space Force, and the U.S. Coast Guard do not have their own respective ROTC programs; rather, graduates of Naval ROTC programs have the option to serve as officers in the Marine Corps contingent on meeting Marine Corps requirements.

Source: Wikipedia — Reserve Officers' Training Corps (CC BY-SA 4.0)