of governing. Once Allen felt that the war had ended in his district he volunteered to serve in China to suppress the Boxer Rebellion, but was denied because his service in the Philippines was considered more important. For a short while, Allen served as the governor of Leyte between April and June 1901. After this, he was chosen to found the Philippine Constabulary because of his success in the recruitment of members for the Philippine Scouts, his ability to speak Spanish, and his record on Leyte. The intention of the constabulary was to fill the gap between the American forces and the Filipino police on the Philippine Islands. It was made up of both Filipino constables and American officers and helped to the islands stabilized. The constabulary aided in the suppression of the rebellion, guarded prisons, provided intelligence, and returned law and order to the islands. He stayed in command of the group up until 1907 and rose to the temporary rank of bridgier general with the command of over 10,000 men. Return to the United States, Punitive Expedition, and World War I Allen went back to the United States in the spring of 1907 and returned to his permanent rank as a major. Next he would join the General Staff in 1910 as a cavalry expert. In August 1912, he was appointed to the rank of lieutenant colonel and then in July 1916, became a colonel. He assumed command of the 8th Cavalry Regiment and led them during the Punitive Expedition, in which Brigadier General John J. Pershing attempted to capture Pancho Villa. After the United States had entered World War I in April 1917, Allen was now promoted to brigadier general in May. He was made a temporary major general not long afterwards and given command of the newly activated 90th Division at Camp Travis, Texas. The unit consisted mostly of draftees from the states of Texas and Oklahoma−hence the division's T.O. insignia on its badge, together with its nickname of "Tough Ombres"−and, in its first few weeks, had many shortages including rifles, housing, artillery, uniforms, and even soldiers. By the spring of 1918, the division was short by more than 10,000 men. Despite these problems, Allen kept his men in a training program. Once he learned that the division would be joining the American Expeditionary Forces (AEF) on the Western Front in May of that year, large