U.S. Air Force firefighters assigned to the 144th Civil Engineer Squadron participate in the 2015 Fresno Yosemite International Airport Triennial Full-Scale Exercise May 13, where they had the opportunity to work with various local agencies to include the Clovis and Fresno fire departments, Fresno Aircraft Rescue and Firefighting, Fresno Airport first responders, property management and emergency medical services. (Air National Guard photo by Senior Airman Klynne Pearl Serrano/Released)