http://www.onwar.com/chrono/1943/apr1943/f30apr43.htm
Germans deceived by British corpse
Friday, April 30, 1943 www.onwar.com
HMS Seraph [photo at link].
In Spain... As part of a deception plan for the invasion of Sicily (Operation Husky), the British submarine Seraph releases a corpse into the sea off the Spanish port of Huelva hoping it will be picked up and the papers carried passed on to the Germans. The body purports to be that of a Major Martin of the Royal Marines and he is carrying letters from General Nye, Vice-Chief of the British General Staff, and Admiral Mountbatten, Chief of Combined Operations, to Eisenhower, Alexander and Cunningham referring to Allied plans for an invasion of Greece. The Germans do receive the information and it contributes to their lack of appreciation of the true Allied strategy.
In Tunisia... The Germans retake Djebel Bou Aoukaz. Farther north, the American gain a foothold on Hill 609. Alexander decides to switch veteran units from the British 8th Army to join a renewed attack between Bou Aoukaz and Ksar Tyr.
From London... The Polish government in exile drops its call for a Red Cross enquiry into the Katyn massacre in an attempt to reestablish relations with the USSR.