Deputy Director of Intelligence, Air Ministry 1938-1939; World War II 1939-1945; Air Officer in charge of Administration, General Headquarters, British Expeditionary Force (BEF), France 1939; Director of Military Co-operation, Air Ministry 1940-1941; Chief of Air Staff, New Zealand, and Commander, Royal New Zealand Air Forces, South Pacific 1941-1943; Air Officer in charge of Administration South East Asia Air Command 1943-1946; RAF Representative, Washington, USA 1946-1948; Air Member for Technical Services, Air Council, Air Ministry 1948-1951; retired 1951.