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Air traffic controllers assigned to the 100th Operations Support Squadron prepare for an incoming flight at RAF Mildenhall, England, April 9, 2018. Air traffic controllers are responsible for more than just the tower; they are also charged with maintaining the ground controllers, flight data, base operations and the radar facility. All are integral pieces of the puzzle that keep Team Mildenhall refueling the fight and powering the mission. (U.S. Air Force photo by Airman 1st Class Alexandria Lee)