No. 428 Squadron RCAF
No. 428 Squadron RCAF was the ninth long-range heavy bomber Article XV squadron formed overseas during the Second World War at RAF Dalton in Yorkshire, England on November 7, 1942. The squadron was initially assigned to No. 4 Group RAF. With the creation of No. 6 Group RCAF, the squadron was reallocated on January 1, 1943 operating with it until April 25, 1945.
439 Combat Support Squadron
No. 123 (Army Co-operation) Squadron was formed on 15 January 1942 during World War II from the School of Army Co-Operation. The latter had been formed on 22 October 1941 at Rockcliffe, Ontario under the command of Squadron Leader W.W.S. Ross, who continued in that position for No. 123 Squadron. The school was administratively part of No. 3 Training Command BCATP and operationally under RCAF Headquarters. Equipped with North American Harvard Mark IIB trainers and Westland Lysander Mark II army co-operation aircraft, the squadron trained with the 4th and 7th Canadian Divisions in close support and reconnaissance. It relocated to Debert, Nova Scotia, on 16 February 1942, joining Eastern Air Command. A detachment of three Lysanders was stationed at Sydney to patrol the harbour entrance there between 8 October and 27 January 1943, flying 98 sorties and 194 flying hours.