The Army Reserve Officers' Training Corps (AROTC) is the United States Army component of the Reserve Officers' Training Corps. It is the largest Reserve Officer Training Corps (ROTC) program which is a group of college and university-based officer training programs for training commissioned officers for the United States Army and its reserves components: the Army Reserves and the Army National Guard. There are 30,000+ Army ROTC cadets enrolled in 274 ROTC programs at major universities throughout the United States.