No. 5 Group RAF effective squadrons of Bomber Command, personified by No 617 Squadron the "Dambusters", formed from 5 Group aircrew in March 1943. Most of the group's main airfields were around Lincoln, including RAF Scampton. By the end of the war the group had grown to 15 squadrons. The group was noted for its high accuracy bombing, being involved the sinking of the "Tirpitz" in November 1944 and the shattering of the strategic Bielefeld railway viaduct in March 1945. The Group introduced new weapons operationally, including Barnes Wallis's "bouncing" and his Tallboy and Grand Slam "earthquake" bombs. The group was disbanded on 15
No. 15 Squadron RAF Regiment No. 15 Squadron RAF Regiment No. 15 Squadron RAF Regiment is a field squadron of the RAF Regiment in the Royal Air Force. Its mission is protection of RAF bases from ground attack. The squadron's headquarters is at RAF Honington. The squadron was formed (as No. 15 Light Anti-Aircraft (LAA) Squadron) from No. 2700 LAA Squadron in June 1946 at RAF Nethertown and was renamed as No. 15 Squadron RAF Regiment a year later in June 1947. In 1957, the squadron was called upon for security and defence duties in Northern Ireland with personnel serving at RAF Aldergrove and RAF