U.S. Air Force Chief Master Sgt. Timothy Gibson, air transportation career field manager, speaks during the closing ceremony of 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, espirt de corp and prestige of Aerial Port Airmen while promoting professionalism, leadership, training and communication between "Port Dawgs."(U.S. Air Force photo by Senior Airman Josh Slavin/Released)