Many Canadians served in the fighter squadrons which repulsed the "Luftwaffe" in the summer of 1940. In fact, although the RAF only recognises 83 Canadian pilots as flying on fighter operations during the Battle of Britain, the RCAF claims the actual figure was over 100, and that of those 23 who died and 30 more were killed later in the war. Much of this confusion can be attributed to the fact that apart from RCAF members flying in RCAF units, there were those RCAF members who were in RAF units as well as Canadians who were members of the RAF, not the RCAF. Another 200 Canadian pilots fought with RAF Bomber Command and RAF Coastal Command during the period and approx 2,000 Canadians served as ground crew.