PERRY, GA - Technical Sergeant Lindy Ross, a member of the New York Air National Guard's 106th Rescue Wing demonstrates how to prepare a sample of an unidentified substance for testing during a training scenario at Global Dragon deployment for training at the Guardian Centers of Georgia, Perry, Ga., March 10, 2015. The testing provides a refresher course for Airmen, allowing them to put their skills to use to identify live chemical, biological, radiological and nuclear agents and materials. Air National Guard emergency management technicians from more than 20 individual units participated in Global Dragon.