What did Joe McCarthy's famous raid in 1943 attack?
Joe McCarthy (RCAF officer):  He is best known as the commander and pilot of Lancaster AJ-T ("T-Tommy") in Operation Chastise, the "Dambuster" raid of 1943. Operation Chastise: Operation Chastise was an attack on German dams carried out on 16–17 May 1943 by Royal Air Force No. 617 Squadron, subsequently publicised as the "Dam Busters", using a specially developed "bouncing bomb" invented and developed by Barnes Wallis.
German dams