Mutual Assured Destruction (M.A.D.) is a doctrine of military strategy in which a full-scale use of nuclear weapons by two opposing sides would effectively result in the destruction of both the attacker and the defender. This is a photograph of the first stage rocket engine of the the Titan 2 Missile.

Location: The Titan Missile Museum, also known as Air Force Facility Missile Site 8 or as Titan II ICBM Site 571-7, is a former ICBM missile site located at 1580 West Duval Mine Road, Sahuarita, Arizona. It is located about 15 miles south of Tucson. It is now a museum run by the nonprofit Arizona Aerospace Foundation which includes a Titan II intercontinental ballistic missile still in its silo as well as the original launch facilities.

It was declared a National Historic Landmark in 1994.