When the Air Force couldn't find a hydrogen bomb it lost over Spain, the Navy was called in to search for it on the bottom of the Mediterranean.
In 1966 the United States and the Soviet Union were engaged in a taut nuclear cat-and-mouse game. The U.S. Air Force's Strategic Air Command kept an arsenal of missiles and aircraft on a constant state of alert. Decades before the term 24/7 was invented, SAC embodied it with airborne patrols—under code names like Looking Glass and Chrome Dome—flown respectively by command-and-control aircraft and nuclear-armed bombers.