The Eighth Army then participated in the Italian Campaign which began with the Allied invasion of the island of Sicily, code-named Operation Husky. When the Allies subsequently invaded mainland Italy, elements of the Eighth Army landed in the 'toe' of Italy in Operation Baytown and at Taranto in Operation Slapstick. After linking its left flank with the U.S. Fifth Army, led by General Mark W. Clark, which had landed at Salerno on the west coast of Italy south of Naples, the Eighth Army continued fighting its way up Italy on the eastern flank of the Allied forces. Together these two armies made up the Allied Armies in Italy (later redesigned 15th Army Group, under General Sir Harold Alexander.