Airman 1st Class Ignacio Luna, 28th Aircraft Maintenance Squadron weapons load crew member, prepares a bomb bay for loading during a quarterly load crew competition at Ellsworth Air Force Base, S.D., Jan. 29, 2016. Once the aircraft is armed, weapons loaders execute quality checks to verify all weapons systems are operational proceeding to B-1 missions. (U.S. Air Force photo by Airman Donald Knechtel/Released)