"LST-975" was still in service there when at 04:00 on 25 June 1950, the North Korean People's Army struck south across the 38th Parallel. On 27 June, President Harry S. Truman ordered American naval and air support of the Republic of Korea. That afternoon the Security Council called upon all members of the United Nations to assist in repelling the North Korean attack. With the need for shipping for an immediate large-scale lift of troops and supplies, "LST-975" was assigned to the Military Sea Transportation Service (MSTS) on 1 July, to be manned by a Japanese civilian crew. On 28 August, she recommissioned at Yokosuka, Japan, with Lieutenant Arnold W. Harer in command. After training out of Kobe, Japan, "LST-975" joined the Amphibious Forces, Pacific Fleet, and arrived off Inchon, Korea, on 15 September, for supply duty through the landings on 15 to 17 September, and into the middle of October. That first day she was repeatedly harassed by sniper fire as she beached on "Red Beach"; a mortar shell wounded one man. While she unloaded during the next few days, Marine casualties were brought on board for care by Surgical Team 3. Completing unloading by 17 September, she spent the next month on ship-to-shore supply operations.