General Mark Welsh, Chief of Staff of the Air Force, shakes hands with Washington National’s baseball player Gio Gonzalez, before the start of the game versus the Miami Marlins at Nationals Park in Washington, D.C., Sept. 19, 2013. Airmen from the National Capitol Region participated in various pre-game events and ceremonies in honor of Air Force Night. The Nationals defeated the Miami Marlins 3-2. (U.S. Air Force photo/Airman 1st Class Erin O’Shea)