was United States National Security Advisor to Presidents John F. Kennedy and Lyndon Johnson from 1961 through 1966. Known for role in involving U.S. in Vietnam War. was one of Kennedy's "wise men". He played a crucial role in all of the major foreign policy and defense decisions of the Kennedy and part of the Johnson administration. These included the Bay of Pigs Invasion, the Cuban Missile Crisis, and, most controversially, the Vietnam War. From 1964 he was Chairman of the 303 Committee, responsible for coordinating government covert operations. Former dean of faculty at Harvard. Undergrad at Yale.