U.S. Air Force firefighters with the 169th Civil Engineer Squadron at McEntire Joint National Guard Base, South Carolina Air National Guard, respond to a simulated attack during a Certified Readiness Evaluation scenario, Sept. 10, 2013.
Members of the 169th Fighter Wing are conducting the CRE, which assesses their ability to operate safely and efficiently in a deployed chemical combat environment. (U.S. Air National Guard courtesy photo by Master Sgt. Amy Kyzer/Released). Original public domain image from Flickr