William Chase enlisted in the Rhode Island National Guard, and subsequently served on the Mexican Border in 1916, and then in World War I. He commanded a Brigade of the 1st Cavalry Division in World War II, and was responsible for freeing 3,400 prisoners from the Santo Thomas Prison Camp in Manila. He retired after the war, but was called out of retirement to serve in the Korean War, and then retired in 1955 as a U.S. Army Major General.