E-6 Mercury TACAMO "Looking Glass"

The Boeing E-6 Mercury is an American military aircraft. It operates as an airborne command post and communications center, relaying instructions from the National Command Authority. Its role in relaying to the fleet ballistic missile submarines gives it the suffix TACAMO ("Take Charge and Move Out").

Codenamed Looking Glass, it is USSTRATCOM's Airborne Command Post, designed to take over in case NORAD's Cheyenne Mountain Operations Center is destroyed or incapable of communicating with strategic forces. The name Looking Glass is another name for mirror, used because it "mirrors" the abilities of Cheyenne Mountain to control nuclear forces.