Royal Air Force airmen from RAF Honington and U.S. airmen from RAF Mildenhall attend services in St. Mary’s Church after marching in a parade during the Battle of Britain Commemoration in Bury St. Edmunds, England, Sept. 16, 2012. The Battle of Britain was the first major campaign to be fought entirely by air forces and resulted in a decisive British victory over Germany, a crucial turning point in World War II.