 Complete the following phrase:  The squadron became part of the Desert Air Forces newly formed No. 239 Wing on 1 March 1942, serving alongside one Australian squadron, No. 3, and two RAF squadrons, Nos. 112 and 250 Squadrons. No. 450 Squadrons main rolesescorting daylight raids by Douglas Boston bombers, and ground-attack missions in support of the Eighth Armywere hazardous and resulted in relatively heavy losses. From 26 May, as Rommel launched an 