Mountains, Mexico. After the end of the Indian wars the regiment was occupied with quelling labor disputes in California. Spanish–American War War was declared with Spain in 1898 following the sinking of the USS Maine. The First was quickly sent to Florida where it embarked on ships and was sent to Cuba. While in Cuba the regiment took part in the storming of the San Juan Heights and the capture of Santiago. Philippine–American War In 1900, following occupation duty in Cuba, the regiment was preparing for shipment to China to participate in the Boxer Rebellion. Instead, the regiment was detoured to deal with the rebellion on the Philippine Islands which had also been captured by the United States in the Spanish–American War. The regiment would fight in this guerrilla war in the Philippines from 1900 to 1902 and again from 1906 to 1908. Subsequently, the regiment was redeployed to garrison duties in Oahu, Hawaii and commanded by Colonel George K. McGunnegle. World War I 1st Infantry Regiment was assigned on 11 September 1918 to the 13th Division at Fort Lewis. 13th ID never left Fort Lewis, and demobilized there on 8 March 1919. 1st IR was relieved on 8 March 1919 from assignment to the 13th Division and resumed separate regiment status. The regiment was again assigned 27 July 1921, this time to the 2nd Division, which was headquartered at Fort Sam Houston, and assigned to the U.S. VIII Corps. World War II The regiment was stationed at Camp Jackson, South Carolina, where it was relieved 16 October 1939 from assignment to the 2nd Division and assigned to the 6th Division. The 6th Division arrived at Fort Jackson on 1939-11-09, and the 1st IR traveled with the division from that point forward. The 1st IR moved to Fort Benning, Georgia on 1940-04-09 to prepare for a series of maneuvers. The 1st IR participated in the Sabine, Louisiana – Texas Maneuver on 1940-05-09. They then moved to Fort Francis E. Warren, Wyoming on 1940-06-03, and then to Fort Leavenworth, Kansas on 1941-04-02, followed by Fort Leonard Wood, Missouri on 1941-05-20. They then moved to Tennessee to participate in maneuvers there. This was followed by a training cycle at the Desert Training Center, while billeted at the Camp Young billeting area from 1942-12-10. The regiment then staged at Camp San Luis Obispo, California on 1943-03-23. The regiment departed from the San Francisco,