The squadron returned to combat in April 1944 when, operating from bases in Corsica, it took part in the Italian Campaign and Allied invasion of Southern France until September. No. 451 Squadron moved to Italy between September and October 1944, but was transferred to the United Kingdom in November. From January to April 1945, it took part in the liberation of Europe by escorting Allied bomber units and conducting air strikes against German V-2 rocket sites and transportation targets. Following the war, the squadron was deployed to Germany from September 1945 as part of the Allied occupation forces, but was disbanded on 21 January 1946 when the Australian Government dropped plans for a permanent Australian contribution to the occupation of Germany due to a shortage of volunteers for this duty.