Known as the "Eye in the Sky" and the "Doomsday Plane," the E-3 AWACS and the E-6 Mercury are two of the U.S. military's most vital assets, providing crucial surveillance on the battlefield and a stable communications link to the Navy's fleet of ballistic missile submarines in the event of a nuclear war. This week on LoyalTV, we visit the planes' home base at Tinker Air Force Base in Midwest City to find out how they keep America safe and secure.