During the Second World War, the squadron flew Supermarine Spitfire fighters and saw action over Dunkirk and the during the Battle of Britain in the early years of the war. Combat operations were flown from Britain over German-occupied Europe during 1941–1944, before the squadron moved to the continent after the Normandy landings. During 1944–45, the squadron supported the Allied advance into Germany and it remained there until mid-1946 as part of the occupation force following the end of hostilities. In the post war years, the squadron was disbanded and re-formed several times, operating a variety of jet aircraft in the fighter, reconnaissance and interceptor roles. In 2006, the squadron was re-roled as the Fast Jet & Weapons Operational Evaluation Unit. It remained in this role until 2010 when it became the RAF's Test and Evaluation Squadron.