 In August 1945, Strong became Deputy Director of the Political Warfare Executive, succeeding Sir Bruce Lockhart as its head a month later. With the elevation of Montgomery to Chief of the Imperial General Staff in 1946, the career prospects of officers who had served at SHAEF, like Morgan, Gale, Whiteley and Strong, became dim, and Strong retired from the Army with the rank of major general on 9 May 1947 to become a civil servant.
