World War II: The Allies land at Salerno and Taranto, Italy.

The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members were the "Big Four" – the United Kingdom, United States, Soviet Union, and China.

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 during World War II. 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.

Operation Slapstick was the code name for a British landing from the sea at the Italian port of Taranto during the Second World War. The operation, one of three landings during the Allied invasion of Italy in September 1943, was undertaken by airborne troops of the British 1st Airborne Division, commanded by Major-General George Hopkinson.