FRANKFURT (Reuters) - While Ukraine's airspace has been largely empty amid the crisis with Russia, a remotely piloted U.S. military vehicle called the RQ-4 Global Hawk has flown over the country in circles for hours at a time.
Over the past month, two of the spy planes have travelled on regular missions from the Mediterranean Sea to Ukraine, where they have navigated in repeated loops in the north and the east, according to Flightradar24.
