In August 1950, just weeks after the outbreak of the Korean War, she was transferred to the Pacific. The ship embarked elements of the 1st Marine Division at San Diego and set sail for Kobe, Japan, on 31 August. "Algol" arrived in Kobe on 16 September but put to sea again the following day to join in the Inchon invasion. The initial assault at Inchon had gone forward the day before "Algol"s arrival in Japan. Her mission, therefore, was one of resupply and reinforcement. She remained at Inchon, unloading, from 21 to 27 September. On the 28th the attack cargo ship headed back to Japan.