Colonel R. D. Hooker Jr. retired in 2010 after 32 years of enlisted and commissioned officer service. A veteran of five combat tours, he served exclusively in parachute units, commanding at company, battalion and brigade level and serving as a staff officer in the offices of the Chairman of the Joint Chiefs, Secretary of the Army, and Chief of Staff of the Army, as well as the National Security Council in the White House. He also taught at West Point and the National War College.