 Following the transition, Haig was replaced by Donald Rumsfeld.Author and Haig biographer Roger Morris, a former colleague of Haig's on the National Security Council early in Nixon's first term, wrote that when Ford pardoned Nixon, he in effect pardoned Haig as well.From 1974 to 1979 Haig served as the Supreme Allied Commander Europe, the commander of NATO forces in Europe, and commander in chief of United States European Command.