 He became Head of the Supreme Headquarters Allied Expeditionary Force Mission to Belgium in 1944 and then GOC 43rd (Wessex) Infantry Division in 1945.After the war Erskine was Commander of British Forces in Hong Kong in 1946, Director General of the Territorial Army in 1948 to 1949 and GOC British Troops in Egypt in 1949.Returning to the United Kingdom, he became GOC-in-Chief, Eastern Command in 1952.