As of December 2014, the RAF officially recognizes 30 Belgians as having participated in the Battle of Britain (of whom 18 did not survive the war) although the Battle of Britain monument (constructed in 2005) includes 28. At the time of the battle, Belgian pilots were mixed into British units and did not have their own squadrons. By the summer of 1940, Belgians made up around half of No. 609 Squadron RAF, a unit flying Spitfire fighters. Nos. 235 and 236 Squadrons of RAF Coastal Command also had disproportionate numbers of Belgian pilots at 8 and 6 respectively. Altogether, Belgium provided the largest contingent of pilots during the Battle of Britain that were not from Eastern Europe or the Commonwealth.