U.S. Air Force Col. Wade Causey, director of the 601st Air and Space Operations Center’s Combat Operations Division, monitors airspace during a joint and bi-national exercise executed through Air Forces Northern’s Distributed Mission Operations system Nov. 17. DMO is a system of inter-connected simulators that allows warfighters from across the U.S. and Canada to participate simultaneously in the same live scenario. (U.S. Air Force photo by Angela Pope/Released)