California Port of Embarkation on 1943-09-19, and arrived in Hawaii on 1943-09-26. The 1st IR departed Hawaii on 1944-01-26, and arrived at Milne Bay, New Guinea on 1944-02-07 to participate in the New Guinea Campaign. 1st IR departed Milne Bay on 1944-06-01, and arrived at Toem on 1944-06-14. 1st IR assaulted Sansapor on 1944-07-30, and left New Guinea on 1944-12-26 with the end of the New Guinea Campaign taking place on 1944-12-31. The 1st IR won a Presidential Unit Citation for its action at Milne Bay. 1st IR assaulted Lingayen Gulf on the Philippine Island of Luzon on 1945-01-09 to participate in the Luzon Campaign. 1st IR moved to Sixth Army Reserve status from 1945-02-10 to 1945-02-23, when they returned to the Luzon Campaign. 1st IR attached to 38th Infantry Division from 1945-04-28 to 1945-05-01, and then was attached to the XI Corps from 1945-06-10 to 1945-06-25, when they returned to 6th Infantry Division Control. The Luzon Campaign concluded on 1945-07-04. 1st IR was located at Bagabag, Philippine Islands on 1945-08-14. They then moved to Korea on 1945-10-24, which they Occupied through 1949, with garrisons in Taegu and Pusan. Cold War Korean War and reactivation On 10 January 1949, 1st IR was inactivated in Korea, and then was reactivated on 4 October 1950 at Fort Ord, California as a training regiment for units being sent to the fight in Korea. On 3 April 1956, the regiment was relieved from assignment to the 6th Infantry Division, and then was assigned on 15 May 1956 to the United States Military Academy at West Point, New York. On 15 May 1958 the regiment was reorganized under the Combat Arms Regimental System as HHC, 1st Battle Group, 1st Infantry Regiment. In 1960, the 1st Battle Group, 1st Infantry was reorganized under a concept that provided sufficient tactics instructors in the permanent party for continuity, but called for outside augmentation for the summer training program. This left the battle group with a Headquarters, Headquarters and Training Company, Service Company, Airborne Detachment, the 2nd Aviation Detachment, the USMA Band, Detachment 1 and 2 United States Army Hospital, and saw the attachment of the 50th Engineer Battalion (Construction) and the 57th Military Police Company. The old Military Police Detachment personnel formed the nucleus of the newly attached 57th Military Police Company. On 16 May 1961, the mission of providing tactical instruction for the Corps of Cadets along