The 779th Dental Squadron smiles for a photo at the Great American Smokeout 5K Cold Turkey Trot Nov. 19, 2015, on Joint Base Andrews, Md. The event was hosted by 779 Aerospace Medicine Squadron health promotion flight, and is part of a national annual event that encourages smokers to quit. (U.S. Air Force by Senior Airman Mariah Haddenham/Released)