Col. Paul Bauman, 319th Air Base Wing commander (left), Gen. Paul Selva, Air Mobility Command commander, and Lt. Col. Jonathan Castellanos, 319th Operations Support Squadron commander(right), discuss how the 319th OSS provides for the mission, Feb. 11, 2014, on Grand Forks Air Force Base, N.D. The Air Traffic Control Tower tour was part of the first-day of the two-day tour of Grand Forks AFB. (U.S. Air Force photo/Senior Airman Xavier Navarro)