Let's assume for the sake of this discussion that John F. Kennedy is not assassinated in 1963 and lives to win reelection in 1964. Also assume that Kennedy by 1965 sends the marines into South Vietnam to fight to fight the Vietcong after feeling he has no other choice, but to do so. How long would Kennedy keep the marines there and how far would he put them in? Would he try peace talks and how long would it take for them to get anywhere, if anywhere at all?