Master Sgt. Joseph Heath, 914th Aeromedical Staging Squadron, signals to Aeromedical Evacuation Technicians during Operation Cold Front, here at Niagara Falls Air Reserve Station, N.Y., September 6, 2014.This exercise serves as an opportunity to evaluate participants on their ability to respond to operational needs and demonstrate mission execution capabilities. (U.S. Air Force photo by Staff Sgt. Stephanie Clark)