The 819th Strategic Aerospace Division (825th SAD) is an inactive United States Air Force organization. Its last assignment was with Strategic Air Command, assigned to Second Air Force, being stationed at Dyess Air Force Base, Texas. It was inactivated on July 2, 1966. Activated in 1956 as an intermediate command echelon of Strategic Air Command, supervising and directing the combat training of its subordinate units in the Central Midwest of the United States from February 1956 – July 1966. Inactivated in 1966 as a result of SM-65 Atlas ICBM being retired.