FURRY FRIENDS U.S. Air Force Staff Sgt. Jason David and 1st Lt. Melissa Stevens pet a Bulgarian sheep herder's dogs near Bezmer Air Base, Bulgaria, April 3, 2008. The airmen are in the area participating in exercise Thracian Spring 2008, an annual bilateral training exercise between the United States and Bulgaria. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 653904-H-TLA04-093.jpg Photo Gallery