Senior Airman Cortney Goes (front to rear), Staff Sgt. Pete Solzano, Senior Airman Sherrilyn Ceja and Senior Airman Nicole Lundie control aircraft flying into and out of Balad Air Base, Iraq, the busiest single-runway airfield in the Department of Defense. A C-17 Globemaster III from McChord Air Force Base, Wash., taxis past the control tower on May 15, 2006. Controllers monitor more than 200,000 square miles of air space over Iraq. The four Airmen are air traffic controllers with the 332nd Expeditionary Operation Support Squadron. (U.S. Air Force photo/Senior Airman Brian Ferguson)