U.S. Air Force Senior Airman Joshua Roberts, 4th Combat Camera Squadron broadcaster, documents participants during the Port Dawg Challenge at Dobbins Air Reserve Base, Ga., June 18, 2015. The Port Dawg Challenge was created to enhance and maintain the camaraderie, esprit de corps and prestige of Aerial Port Airmen while promoting professionalism, leadership, training and communication between "Port Dawgs." (U.S. Air Force photo by Tech. Sgt. Stephen D. Schester/Released)