Lt. Col. Charles Drown, left, medical element commander with the 165th Medical Group, and Capt. Christal Lavelle a physicians assistant with the 116th Medical Group, Georgia Air National Guard, cover a simulated patient with an aluminum warming blanket during the Vigilant Guard 2013 exercise at Camp Blanding, Fla., May 21, 2013. The Medical Groups from the 116th Air Control Wing and the 165th Airlift Wing are a key component of the 78th Homeland Response Force set up to respond to disasters in the Southeast U.S. region. During the exercise, Guardsmen responded to various scenarios such as a plane crash, train derailment, hurricane, and an explosion at a chemical plant.