Edited sentence: Unfortunately this was simply a transparent ruse in the showdown for the 1972 U.presidential election, which President Nixon won easily, as it conveniently ignored that all of the North Vietnamese troops were simply waiting across the border in Cambodia (sanctuaries which the South Vietnamese eventually smashed in 1970) and that a unilateral U.prisoners of war which President Nixon eventually secured in 1973.withdrawal from Indochina at this point would have seen a quick invasion of the South by the North with no guarantee of the return of U