chemical attack
Staff Sgt. James Witherow, 51st Aircraft Maintenance Squadron, radios to the unit control center as he does his post attack reconnaissance sweep on the flight line at the start of the theater ballistic missile attack scenario May 8 on Osan Air Base, Republic of Korea. A PAR sweep fields data and provides information to base decision makers to develop strategies to defend the base, execute combat operations and receive follow-on forces. (U.S. Air Force photo by Senior Airman David Owsianka)