Subsequently, "Hissem" performed regular escort duty across the Atlantic interspersed with anti-submarine and anti-aircraft training on the East Coast of the United States. The ship transported over 500 paratroopers in March 1945, taking them on board in the Azores, transferring them to SS "Althone Castle", and escorting the ship through submarine waters to Liverpool. Braving both the Germans and the heavy weather of the North Atlantic. "Hissem" made a total of seven convoy voyages from June 1944 until she returned to New York 28 May 1945.