US Air Force Thunderbirds F16 jets perform as they arrive in the Air Force base of Graf Ignatievo, Bulgaria, east of the capital Sofia, Friday, June, 29, 2007. The Thunderbirds the world-renowned Air Demonstration Unit of the United States Air Force are coming to Bulgaria as part of the Bulgarian - American Days of the Air Force, commemorating the the 95th anniversary of the Bulgarian Air Force and the 60th anniversary of the U.S. Air Force and will perform an air-show at Graf Ignatievo on July, 1. Graf Ignatievo is one of two airbases which will be used by US Air Forces in Bulgaria.(AP Photo/Petar Petrov)
Featured Photo Galleries
