The outbreak of the Korean War caused her to recommission 30 September 1950, Capt. E. M. Brown in command. With San Diego as her home port, she operated part of each year, except 1952 and 1956, in the Far East. Her first voyage began 22 March 1951 when she departed for Yokosuka, Japan. Operating mainly among the Japanese Islands, she twice transported men and supplies to the Korean theater before returning home 27 November. Again in May 1953 "Lenawee" returned to transport duties in Korean waters and was at Inchon in July when the final truce was signed.