 He had first become interested in the idea of an all-volunteer army during his time out of office, based upon a paper by Martin Anderson of Columbia University.Nixon also saw ending the draft as an effective way to undermine the anti-Vietnam War movement, since he believed affluent youths would stop protesting the war once their own probability of having to fight in it was gone.There was opposition to the all-volunteer notion from both the Department of Defense and Congress, so Nixon took no immediate action towards ending the draft early in his presidency.