command by Major Hereward de Havilland, younger brother of aircraft designer Geoffrey de Havilland. In September 1918, Treble One participated in the Battle of Megiddo, tasked with attacking the German airfield at Jenin. By the time the Armistice with Turkey ended the war in the Middle East in October, No. 111 Squadron had claimed 44 enemy aircraft destroyed and a further 13 forced down for the loss of two pilots killed in combat, one prisoner and three wounded. The squadron had produced four aces: Austin Lloyd Fleming, future Air Marshal Peter Roy Maxwell Drummond, Charles Davidson, and Arthur Peck. Inter-War Treble One moved to Egypt after the War ended and then to Ramla in Palestine on 6 February 1919, re-equipping with the Bristol Fighter. On 1 February 1920, the squadron renumbered to No. 14 Squadron. On 1 October 1923, No. 111 Squadron reformed at RAF Duxford, equipped with a single flight of six Gloster Grebe fighters, the first Grebes to enter service with the RAF. These were supplemented by a second flight of First World War-vintage Sopwith Snipes in April 1924, and by a third flight of Armstrong Whitworth Siskins in June 1924, completely equipping itself with Siskins in January 1925. The squadron, tasked with defending London, replaced its Siskins with Bristol Bulldogs in January–February 1931, with its Siskins being passed on to No. 19 Squadron. The squadron moved to RAF Northolt in July 1934 and re-equipped with Gloster Gauntlets in May–June 1936. The squadron became the first Hawker Hurricane squadron in January 1938. Second World War 1939–1940 Still based at RAF Northolt at the outbreak of war, No. 111 (Fighter) Squadron relocated to RAF Acklington, Northumberland, in October 1939. The squadron scored its first victory on 29 November, when Sqn. Ldr. Broadhurst shot down a Heinkel He 111. Treble One moved even further north to RAF Drem, East Lothian, in December 1939 in order to provide cover for the Royal Navy at Scapa Flow. By May 1940, No. 111 (F) Squadron had returned south to RAF Northolt due to the German invasion of France. On 16 May, a flight from No. 111 (F) Squadron joined a flight from No. 253 Squadron to form a joint unit, with one half deploying to France and the other remaining in Britain. Treble One flew defensive flights during the Dunkirk evacuation. No. 111 (Fighter) Squadron played a role in the Battle of Britain