Arriving at Yokosuka on 16 June, she departed there nine days later and headed for the west coast of Korea to join the British carrier for screen and patrol duty. In August, "Ulvert M. Moore" participated in bombardment and covering operations at Wonsan, Korea, during minesweeping operations there and came under fire for the first time from communist shore batteries. Her guns covered the retirement of the more lightly constructed minecraft and earned the ship a "well done." After conducting frequent patrols north to Songjin and Chongjin, Korea, for shore bombardment and anti-junk patrol, the destroyer escort put into Sasebo on 25 August for refit.