Robert McNamara, architect of the Vietnam war, died on Monday morning in his home at the age of 93, his wife Diana McNamara told the Associated Press. McNamara, a hawk turned dove on Vietnam, wrote in his book “In Retrospect” that he was never quite sure whether he quit or was fired as US defence secretary. He had held the job for seven years. McNamara came to the conclusion that military victory was beyond the reach of the US and that the war was doing terrible damage to American society.