Boeing E 6 Mercury, also called Hermes, sometimes, in jocose tone, even Thoth.
The E-6B model deployed in October 1998 also has the ability to remotely control Minuteman ICBMs using the Airborne Launch Control System. The E-6B replaced Air Force EC-135Cs in the "Looking Glass" role, providing command and control of U.S. nuclear forces should ground-based control become inoperable. With production lasting until 1991, the E-6 was the final new derivative of the Boeing 707 to be built.
https://en.wikipedia.org/wiki/Boeing_E-6_Mercury