ANDERSEN AIR FORCE BASE, Guam - Master Sgt. Fred Richards, 36th Civil Engineer Squadron Fire and Emergency Services assist chief of safety, maps the perimeter of the exercise area and safe zones following a simulated detonation of the vehicle borne explosive device during an exercise in March. Andersen Airmen will see an increase in exercises over the next year in preparation for an Operational Readiness Inspection. (US Air Force photo by Tech. Sgt. Michael Boquette)