Allied invasion of Italy Allied invasion of Italy The Allied invasion of Italy was the Allied amphibious landing on mainland Italy that took place on 3 September 1943 during the early stages of the Italian Campaign of World War II. The operation was undertaken by General Sir Harold Alexander's 15th Army Group (comprising General Mark W. Clark's Fifth Army and General Bernard Montgomery's British Eighth Army) and followed the successful invasion of Sicily. The main invasion force landed around Salerno on 9 September on the western coast in Operation Avalanche, while two supporting operations took place in Calabria (Operation Baytown) and Taranto (Operation Slapstick).
World War II by country the French–Thai War. The December 1941 Japanese invasion of Thailand brought five hours of war after which Phibun surrendered and acquiesced, making the country a stepping-stone to open the Burma Campaign. Japanese victory in the Malayan Campaign made the Premier more enthusiastic about co-operation, and on 21 December, a formal "alliance" was concluded. On 25 January 1942, Thailand declared war on the United States and the United Kingdom. Some Thais disapproved, and formed the Free Thai Movement to resist. Eventually, when the war turned against the Japanese, Phibun was forced to resign, and Thailand renounced its alliance with Japan. The