Description: The 60th anniversary of the United States Air Force was celebrated at an airshow in Britain over the weekend. All kinds of aircraft were featured at the show, from antique B-52s to the agile Thunderbirds aerobatics team. Organizers wanted to celebrate the close relationship between the U.K. and U.S. military forces. F-15 fighter jets, stealth bombers and an aerobatic display to boot. For American Air Force fans, this was a rare treat. The Royal International Air Tattoo is the worlds largest annual military airshow, featuring more than 320 aircraft from 24 countries. This year the United States Air Force was being honored celebrating its 60th anniversary and the close relationship between Britain and America's Air Forces.