 During his tenure enrollment soared after suffering from the anti-military sentiment of the Vietnam War; endowments and scholarships were increased, a new physical education building was completed and major renovations were made to the barracks, mess hall and main academic building.He resigned as president in March, 1979 when President Jimmy Carter appointed him as Director of the Arms Control and Disarmament Agency where he had a major role in the delicate negotiations with the Soviet Union over the Strategic Arms Limitations Treaty.In 1981 President Ronald Reagan made him Delegate-at-Large for Arms Control Negotiations with the rank of Ambassador; after retiring from public service in 1984 he served as President of the Atlantic Council, a foreign policy think tank.