 400 Belgian pilots served in the Royal Air Force . Two all @-@ Belgian fighter units , Nos. 349 and 350 Squadrons , served in the European theatre . No. 350 Squadron alone claimed 51 " kills " between its formation in November 1941 and the end of the war . In total , 1 @,@ 200 Belgians served in the RAF , mainly in British or Free Dutch squadrons . 
