ALCS
The joint Air Force and Navy crew of an E-6B Mercury Airborne Launch Control System aircraft, stationed with the 625th Strategic Operations Squadron based out of Offutt Air Force Base, Neb., pose for a picture on the tarmac of the Montana Air National Guard flight line in Great Falls, Mont., April 5, 2016. The Mercury crew serves as a last line of defense and redundancy program for the nation’s nuclear command and control, and has the capability to launch an intercontinental ballistic missile from any launch facility in the nuclear triad. (U.S. Air Force photo/Airman Collin Schmidt)