Amos Alfred Fries was a general in the United States Army and 1898 graduate of the United States Military Academy. Fries was the second chief of the army's Chemical Warfare Service, established during World War I. Fries served under John J. Pershing in the Philippines and oversaw the construction of the roads and bridges in Yellowstone National Park. He eventually became an important commander in World War I. After he retired from the Army in 1929, Fries wrote two anti-communist books.