After spending three months resting, refitting and training, the battalion then, in early September 1943, took part in the Allied invasion of Italy, suffering very heavy casualties. The battalion, after helping in the liberation of Naples, later participated in the breaching the Volturno Line, and advanced up the spine of western Italy, fighting along the Bernhardt and Winter Lines, and in the First Battle of Monte Cassino in January 1944. In March 1944, the battalion, after nearly six months of continuous action, was withdrawn to Egypt and later Palestine to rest and refit, after suffering very heavy losses. Returning to Italy in July the battalion fought on the Gothic Line, before, in December 1944, being sent to Greece and returning again to Italy in April 1945. However, the battalion took no part in Operation Grapeshot, the final offensive of the Italian Campaign, and instead moved into Austria for occupation duties in May.