?Charp Fest? sharpens skills
With weapons ready, Airmen of the 140th Security Forces Squadron practice combat formations prior Sept. 12, 2009 at the Airburst Range in Fort Carson, Colo. During this portion of the training exercise, Airmen are learning how to negotiate the unstable terrain, while moving together and staying in formation. (Official U.S. Air Force photo by Staff Sgt. Armando Argiz, Colorado Air National Guard/Released)