389^th Infantry Regiment

The 389th Infantry Regiment was organized at Camp Breckinridge, Kentucky, on September 15, 1942, and assigned to the 98th Infantry Division. After division training, it moved to the Tennessee Maneuver Area on September 6, 1943, then to Camp Rucker, Alabama, on November 15. The regiment staged at Fort Lawton, Washington, on April 6, 1944, sailed from Seattle on April 13, and reached Hawaii on April 19. Its overseas service began as Central Pacific defense duty rather than as an assault landing or ground campaign.

On arrival, the 389th served with the 98th Division in the Kauai District. The division's mission was to defend the Hawaiian Islands while other Army and Marine forces moved west through the Central Pacific. After the 391st reached Maui and the 390th reached Kauai, the division also relieved the 38th Infantry Division of the Oahu ground defense mission on May 26. The 389th later moved into the Oahu defense rotation. When the 98th was relieved from Kauai and Maui responsibilities on November 2 and assembled on Oahu, the regiment remained part of the continuing island defense force. On December 5, 1944, it relieved the 390th Infantry for the Oahu defense mission and served under Central Pacific Base Command until the 391st relieved it on March 18, 1945.

The regiment did not enter combat before Japan's surrender. The 98th Division was released from Oahu ground defense responsibilities on May 31, 1945, and began intensive training. On July 28 it was alerted for the planned invasion of Japan, but the war ended while the division was still in Hawaii. The 389th moved to Japan for occupation duty on October 5 and was inactivated there on February 16, 1946.