Unidentified drones have been spotted flying over three bases used by the United States Air Force in Britain, the two countries have confirmed. The objects were seen between Wednesday and Saturday flying over the Royal Air Force’s Lakenheath, Mildenhall and Feltwell bases, all used by the US Air Force (USAF). “The number of (unmanned aircraft systems) fluctuated and they ranged in size/configuration,” a spokesperson for the US Air Forces in Europe said in a statement. The three bases are located within a few miles of each other in eastern England. Since 1992, Mildenhall has been home to the only permanent...