Description: The Kembs Dam. This was another No 617 Squadron special operation. The Kembs Dam on the Rhine, just north of Basle, held back a vast quantity of water and it was feared that the Germans would release this to flood the Rhine valley near Mulhouse, a few miles north, should the American and French troops in that area attempt an advance. The Squadron was asked to destroy the lock gates of the dam. 13 Lancasters were dispatched. 7 aircraft were to bomb from 8,000ft and draw the flak, while the other 6 would come in below 1,000ft and attempt to place their Tallboys, with delayed fuses, alongside the gates. American Mustang fighters would attempt to suppress flak positions during the attack. The operation went according to plan. The gates were destroyed but 2 Lancasters from the low force were shot down by flak.