Early Commissioning Program

Early Commissioning Program (ECP) is a U.S. Army ROTC program that allows graduates of one of the nation's four Military Junior Colleges (MJC) to become commissioned officers in the reserve components (National Guard or Reserve) in two years, instead of the usual four. Upon completion at MJCs, ECP lieutenants must receive a bachelor's degree before serving as active duty officers or continuing a career in the reserve components.

Source: Wikipedia — Early Commissioning Program (CC BY-SA 4.0)