Lew Allen, Jr. (September 30, 1925 January 4, 2010) was a United States Air Force four-star General who served as the tenth Chief of Staff of the U.S. Air Force. As the Chief-of-Staff, Allen served as the senior uniformed Air Force officer, who was responsible for the organization, training, and equipping of 750,000 active duty Air Force, Air National Guard, Air Force Reserve, and civilian personal serving in the United States and overseas. As a member of the Joint Chiefs of Staff, he and the other service chiefs function(ed) as the military advisers to the Secretary of Defense, the National Security Council, and the President.