Operation Avalanche Operation Avalanche Operation Avalanche was the codename for the Allied landings near the port of Salerno, executed on 9 September 1943, part of the Allied invasion of Italy. The Italians withdrew from the war the day before the invasion, but the Allies landed in an area defended by German troops. Planned under the name "Top Hat", it was supported by the deception plan Operation Boardman. The landings were carried out by the US Fifth Army, under American General Mark W. Clark. It comprised the U.S. VI Corps, the British X Corps and the US 82nd Airborne Division, a total of
Operation Corkscrew Operation Corkscrew Operation Corkscrew was the code name for the Allied invasion of the Italian island of Pantelleria (between Sicily and Tunisia) on 11 June 1943, prior to the Allied invasion of Sicily during the Second World War. There had been an early plan to occupy the island in late 1940 (Operation Workshop), but this was aborted when the Luftwaffe strengthened the Axis air threat in the region. The Allied focus returned to Pantelleria in early 1943. The radar installations and airfield on the island were seen as a real threat to the planned invasion of Sicily (codenamed Operation Husky).