With the war in Europe over, the destroyer escort prepared to join the Pacific Fleet in dealing the death blows to the Japanese Empire. She sailed 20 June from New York and after operations in the Caribbean arrived Pearl Harbor 26 July 1945. "Hissem" remained at Hawaii until after the surrender of Japan, and steamed 30 August for Eniwetok and Ulithi. The ship then continued to Japan, arriving Tokyo 7 October 1945 to assist occupation operations. Sailing to Guam 29 October, the ship transported occupation troops to nearby islands, acted as air-sea rescue ship, and steamed as a weather ship through the western Pacific.