Major General John Francis Regis "Jeff" Seitz (May 22, 1908 – October 10, 1978) was a career United States Army officer who, after serving in World War II and the Korean War, retired as Deputy Commander of the First United States Army in 1966. Seitz graduated from the United States Military Academy at West Point, New York, in 1929. He served in several assignments before commanding a battalion at Schofield Barracks at Oahu, Hawaii on December 7, 1941, during the Japanese attack on Pearl Harbor. After the United States entered the Second World War, Seitz served in important staff positions from early 1942 to late 1943. He was highly decorated for his service as colonel commanding the 26th United States Infantry Regiment in combat in the European Theater of World War II for most of the remai