Lieutenant General Hunter Liggett (March 21, 1857 − December 30, 1935) was a senior United States Army officer. His 42 years of military service spanned the period from the Indian campaigns to the trench warfare of World War I. Additionally, he also identified possible invasion sites in Luzon, particularly Lingayen Gulf, which were used during World War II in 1941 by the Japanese and in 1945 by the United States. Early life Liggett was born on March 21, 1857 in Reading, Pennsylvania. He attended, and later graduated, from the United States Military Academy (USMA) at West Point, New York as a second lieutenant in 1879. Among his fellow classmates included several general officers of the future, such as William D. Beach, John S. Mallory, James A. Irons, Lloyd M. Brett, Albert L. Mills, John A. Johnston, Henry A. Greene, Frederick S. Foltz and Samuel W. Miller. After his graduation, he was assigned to the 5th Infantry, where he served in both the Montana and Dakota territories, as well as Texas and Florida, during which time he reached the rank of captain. Liggett's field service in the American west, the Spanish–American War, and the Philippine–American War honed his skills as a military leader. In 1907, he assumed command of a battalion of the 13th Infantry Regiment at Fort Leavenworth, Kansas. From 1909 to 1914, he served as student, faculty member, and president at the Army War College, receiving a promotion to brigadier general in February 1913. Liggett's services in the Philippines included setting up a staff ride in 1914 to study possible invasion sites on Luzon. He was assisted in this by his aide-de-camp, Captain George C. Marshall. The staff ride established that the most likely invasion route would be through the Lingayen Gulf and that this would be all but unstoppable unless the US dramatically increased its army and navy forces in the Philippines. In 1941, the Japanese invaded through the Lingayen Gulf, as the United States did in turn in 1945. World War I Success in brigade commands in Texas and in the Philippines led to his promotion to major general, and selection as commander of the 41st Division in April 1917. The division served in France as part of the American Expeditionary Force. When his division was disestablished, he took command of I Corps. Under Liggett's leadership, the I Corps participated in the Second Battle of the Marne