On 4 July 1944, "PC-1597" sailed in convoy from Norfolk, Virginia, for Bizerte, Tunisia, arriving 23 July. She moved on to Naples, Italy, and Ajaccio, Corsica, from which she cleared 13 August for the invasion of southern France. During the initial assault, she acted as reference vessel for the waves of landing craft bringing the troops ashore, then patrolled off the transport area. Through the next month, she supported the buildup in southern France by escorting convoys to the beachheads, and patrolling along the Riviera. At the close of September, she began general escort duty in the western Mediterranean until 27 May 1945 when she sailed for Jacksonville, Florida.