 However, to meet the manpower requirements of the Vietnam War, Congress approved a measure that allowed cadets at Military Junior Colleges who had completed all requirements of the ROTC Advanced Course to be commissioned as second lieutenants and called to active duty at the conclusion of their sophomore year.In the mid-1970s, the elimination of the draft and the anti-military backlash caused by Vietnam led to officer recruiting problems, especially in the reserves.To address these concerns, the ECP was revised in 1978.