Andersen fire fighters simulate spraying hazardous chemicals off of a role player during a joint emergency management exercise Jan. 27, 2014, at Andersen South, Guam. During the EME, Guam and Andersen first responders were tested on how well they can work together to respond to various emergency scenarios on and off base. (U.S. Air Force photo by Senior Airman Cierra Presentado/Released)