, November 1941. On 22 April 1940, with the
Second World War well under way, he was made
Deputy Chief of the Air Staff. He was appointed a
Companion of the Order of the Bath on 11 July 1940. During 1940,
Trafford Leigh-Mallory clashed with the head of
No. 11 Group,
Keith Park, and the head of
Fighter Command,
Hugh Dowding, over strategy in the
Battle of Britain. Leigh-Mallory argued for a '
Big Wing' strategy i.e. using massed fighters to defend the United Kingdom against enemy bombers. However, the commander of the Kent area, AVM Keith Park, pointed out that while "big wings" were forming (which took some time), his fighter bases in places like Kent were being bombed because they were close to Luftwaffe bases in northern France and there was not time to form "big wings" before enemy bombs were released on Park's airfields. After the Battle of Britain when
Charles Portal was made
Chief of the Air Staff in October 1940, Dowding retired and Portal moved Park and appointing Douglas to replace Dowding as
Air Officer Commanding-in-Chief of Fighter Command, with the temporary rank of
air marshal on 25 November 1940. He was advanced to
Knight Commander of the Order of the Bath on 1 July 1941 and promoted to the substantive rank of air marshal on 14 April 1942. At around this time Prime Minister
Winston Churchill recommended Douglas to command the
China Burma India Theater but
General George C. Marshall, the
U.S. Army Chief of Staff, refused to accept the appointment due to Douglas's well known dislike of Americans. As commander-in-chief of Fighter Command, Douglas was responsible for rebuilding the command's strength after the attrition of the
Battle of Britain, but also for bringing it on the offensive to wrest the initiative in the air from the German
Luftwaffe. He was therefore one of the main orchestrators of the only partially successful
Circus offensive whereby large wings of fighters accompanied by bombers would take advantage of good weather to sweep over Northern France. Douglas was promoted to temporary
air chief marshal on 1 July 1942. he became Commander in Chief,
British Air Forces of Occupation in July 1945. He was advanced to
Knight Grand Cross of the Order of the Bath on 1 January 1946. Promoted to
Marshal of the Royal Air Force on 1 January 1946, Douglas became the second commander of the
British Zone of Occupation in Germany in May 1946. Douglas retired in 1947 and became chairman of
BEA in 1949, a post he retained until 1964. He published two volumes of autobiography,
Years of Combat, covering the First World War, and
Years of Command covering the Second World War. Douglas died in hospital in
Northampton on 29 October 1969 and was buried at
St Clement Danes in
The Strand in
London. He was an atheist. ==Family==