 80 Wing was later incorporated in No.100 (Bomber Support) Group, which was formed at Radlett in November 1943 under Addison (by now promoted to Air Commodore and later to Air Vice-Marshal) to operate radiocountermeasures as part of RAF Bomber Command.By the end of the war 100 (BS) Group was based at Bylaugh Hall in Norfolk with 13 operational squadrons flying a variety of aircraft equipped for radio countermeasures and De Havilland Mosquito intruders directly attacking "Luftwaffe" night fighters.