In the Mediterranean Theater of Operations, the unit participated in the Allied Invasion of Italy during the Naples-Foggia Campaign from 18 August 1943 to 21 January 1944 and the Rome-Arno Campaign from 22 January 1944 till the end of the war. The 313th received battle credits and streamers for both campaigns. On 18 April 1944, the unit was transferred from Italy to Corsica.