Ultimately the Munich Agreement failed following the
Invasion of Poland and the start of the
Second World War in September 1939, with tensions having been building for a number of months prior, with the TA mobilised in August. Expecting the
Luftwaffe to bomb Britain in the event of war, with Tremlett ensuring his regiment was ready for war. A well regarded officer, he was chosen by Major-General
Hugh Martin to be one of his regimental commanders in France with the
British Expeditionary Force, When the position arose as the anti-aircraft brigade commander for Manchester, Tremlett was appointed and upon being appointed commanding officer of the
44th Anti-Aircraft Brigade in November 1940, he was made both an acting
colonel and acting
brigadier in May 1941. He commanded four regiments in Manchester and its surroundings, which were spread across a wide area. Defending
Yorkshire and the
Humber, he commanded three anti-aircraft brigades consisting of 15 regiments, in addition to a division of troops from the
Royal Corps of Signals. After a reorganisation of divisional headquarters, Tremlett was given command of the
1st Anti-Aircraft Group in October 1942, which held the responsibility of the anti-aircraft defence of
London. Under his command were three anti-aircraft brigades. These were also responsible for defending locations outside of London, such as
Windsor Castle and
Chequers. On one occasion a crane lifting an anti-aircraft gun into the back of
Downing Street broke down, leaving the gun suspended above the street, and in the process disturbing a cabinet meeting. The Prime Minister
Winston Churchill phoned Tremlett and instructed him to "take the damn thing away". With the air threat evolving later in the war away from aircraft and toward the
V-1 flying bomb, Tremlett met with General
Frederick Pile and Major-General
Robert Whittaker to discuss the threat. With allied forces forcing the Germans back on the continent, many anti-aircraft personnel were redeployed to support the advance, leaving air defences against the flying bombs depleted. The decision was made to create the
9th Anti-Aircraft Group, with Tremlett being given its command in November 1944, which consisted of seven brigades. Tremlett was appointed honorary colonel of the
656th Light Anti-Aircraft Regiment in June 1947, while the following year he was decorated with the
Territorial Decoration for nine years service in the TA. He exceeded the age for recall in the TA in December 1949 and ceased to belong to the Reserve of Officers; at this point he held the rank of honorary major-general. In retirement he moved to
Devon, where he continued to play cricket at
club level, playing for the Devon Dumplings until he was 80. He was present at the
Coronation of Elizabeth II in 1953 as a Gold Staff Officer and was president of the Devon
Royal Artillery Association from 1957 to 1967. He died in Devon at
Kenn in December 1982, two days after his 89th birthday. He was survived by his wife, Dorothy, with whom he had one daughter. ==References==