An essential element of that ability is Looking Glass; its crew and staff ensure there is always an aircraft ready to direct bombers and missiles from the air should ground-based command centers be destroyed or rendered inoperable.Historically, from 1967 to 1998, the ALCC mission was performed by United States Air Force Boeing EC-135 command post aircraft.Three dedicated Airborne Launch Control Centers (ALCC) were on ground alert around-the-clock providing ALCS coverage for five of the six Minuteman ICBM Wings.2 was dedicated to orbiting near the Minuteman ICBM Wing at Malmstrom AFB (Montana) providing ALCS assistance if needed.The primary mission of the 2nd ACCS was to fly the SAC ABNCP "Looking Glass" aircraft in continuous airborne operations.However, due to its proximity in orbiting over the central United States, the airborne Looking Glass provided ALCS coverage for the Minuteman ICBM Wing located at Whiteman AFB (Missouri).The 2nd ACCS also had an additional EC-135C on ground alert at Offutt AFB as the EASTAUXCP, providing backup to the airborne Looking Glass, radio relay capability, and a means for the Commander in Chief of SAC to escape an enemy nuclear attack.It was under the direction of PACAF of which 5th AF in Fuchu AS, Tokyo Japan handled their voice communications both unsecure and secure.All Blue Eagle Ground Stations were contracted to Philco Corporation and consisted of two trailer vans that could be pulled by a single tractor.One van was configured with a 15KW diesel powered generator and diesel fuel tank and the other was outfitted with a 15-ton heavy duty air conditioning unit, three motor generators, three UHF/VHF FM transmitters and receivers, two multiplexers each providing up to 24 telephone lines and a dedicated, individual telephone line provided to the aircraft.Operation Nightwatch provided three EC-135J[17] command post aircraft to the President of the United States which were based at Andrews AFB (Maryland).The three Nightwatch aircraft were ready to fly the President and the National Command Authority (NCA) out of Washington in the event of a nuclear attack.Equipped with a steerable seven-foot antenna dish in its distinctive "Droop Snoot" or "Snoopy Nose", the EC-135N A/RIA became operational in January 1968, and was often known as the "Jimmy Durante" of the Air Force.However, taskings for the ARIA dwindled because of high costs and improved satellite technology, and the USAF transferred the aircraft to other programs such as E-8 J-STARS.