General Alexander Haig came to national prominence during the Nixon administration, where he served in several roles including as Deputy Assistant for National Security Affairs and Chief of Staff. He continued working for the Ford administration, leading to his appointment as Supreme Allied Commander of NATO. Haig served 18 months as the Secretary of State for President Ronald Reagan. He often clashed with the president and his staff, and resigned in 1982. His new memoir: Caveat: realism, Reaganism, and Foreign Policy," details his time in the administration.