Staff Sgt. Steven Marking, 436th Operations Support Squadron Air Traffic Control watch supervisor Radar Approach Control, waits for an incoming aircraft Dec. 11, 2016, in the air traffic control tower on Dover Air Force Base, Del. Air traffic controllers provide 24-hour, year-round airspace coverage in support of flight and emergency operations. (U.S. photo by Senior Airman Aaron J. Jenne)
<br>Unit: 436th Airlift Wing
Senior Airman Aaron Jenne
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