 On the night of 17/18 August, again under a full moon, Bomber Command sent 597 aircraft, including Rodley's, Sauvage's and Munro's, to the German rocket research establishment on the Baltic Sea coast at Peenemünde.To avoid any public panic at the threat of German secret weapons, crews were told that the target was another radar factory.This attack, Operation Hydra, was made possible largely by experience gained in Operation Bellicose.