Later on , at the insistence of the Polish government-in-exile , they were joined by the Liberators of 2 Wing -- No. 31 and No. 34 Squadrons of the South African Air Force based at Foggia in Southern Italy , and Halifaxes , flown by No. 148 and No. 178 RAF Squadrons .
Later on , after the Polish government-in-exile asked for more help , they were joined by the Liberators of 2 Wing -- No. 31 and No. 34 Squadrons of the South African Air Force based at Foggia in Southern Italy , and Halifaxes , flown by No. 148 and No. 178 RAF Squadrons .