The ship initially patrolled the Caribbean, then moved to the Mediterranean, participating in the landings in southern France. In January 1945, "Incredible" moved to the Black Sea, and performed sweeping duties out of the Soviet Navy base at Sevastopol, Crimea. Afterwards the ship performed air-sea rescue patrols in the Black Sea before returning to Palermo, Sicily. By the time of his discharge in March 1946, he had achieved the rank of Sonarman First Class (SO1) and had earned his mine sweeper patch. He also had been awarded the Bronze Star and the Good Conduct Medal. By virtue of his deployments, Van Cleef also qualified for the European-African-Middle Eastern Campaign Medal, Asiatic-Pacific Campaign Medal, the American Campaign Medal, and the World War II Victory Medal. He was discharged from the Navy in 1946.