U.S. Air Force Col. Cathleen Bullard, 2010 Port Dawg Challenge commander , encourages Senior Airman Matthew Mira, 44th Aerial Port Squadron Port Dawg Challenge participant, as he completes his last lap of the physical fitness 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)