stirrings of the antiwar movement. and johnson moves into what is his core policy in vietnam, which is to try to pressure the north vietnamese to the negotiating table. >> between the gulf in march 1965 for basically tit for tat air bombings. lbj thought the north vietnamese will stop their infiltration of south vietnam, that this will be enough, this will bring them to their knees. >> mcna ma rah and general wes morland were convinced as you up the ante, they would drive to johnson's terms, which were really surrender. in the first three months it was clear to mcnamara and others that the north vietnamese weren't responding to the bombing campaign in the way that was hoped for.