Gen. Paul J. Selva, vice chairman of the Joint Chiefs

Gen. Paul J. Selva, vice chairman of the Joint Chiefs of Staff, observes a munitions loading demonstration during a nuclear enterprise immersion tour at Barksdale Air Force Base, La., May 1, 2017. A weapons load crew team of four Airmen demonstrated the steps required to load munitions in to a B-52 Stratofortress. During the tour Selva met with senior leadership to discuss the importance of the nuclear enterprise and thank the Airmen at Barksdale for the role they play in the U.S. deterrence mission. (U.S. Air Force photo/Senior Airman Mozer O. Da Cunha)