Lt. Col. Charles Drown, left, medical element commander with the 165th Medical Group, Georgia Air National Guard, speaks with a simulated patient after covering him 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.