U.S. Air Force Airmen from the 44th Aerial Port Squadron cheer on members of their unit while they perform burpees for the physical fitness challenge section of the Port Dawg Challenge at Dobbins Air Reserve Base, Ga., June 17, 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 Senior Airman Josh Slavin/Released)