Two drones have been spotted flying over a German military base in the western part of the country earlier this week, just two days after a drone carrying explosives was found at a key cargo airport2 drones spotted flying over German military base after drone with explosives found at cargo airportA view of the entrance to the Bleiberg Barracks, in Mechernich, Germany. (Fotoreport-DB/dpa via AP)A view of the entrance to the Bleiberg Barracks, in Mechernich, Germany. (Fotoreport-DB/dpa via AP)A view of the entrance to the Bleiberg Barracks, in Mechernich, Germany. (Fotoreport-DB/dpa via AP)A view of the entrance to the Bleiberg Barracks, in Mechernich, Germany. (Fotoreport-DB/dpa via AP)BERLIN -- Two drones were spotted flying over a German military base in the western part of the country earlier this week, just two days after a drone carrying explosives was found at a key cargo airport, the German Armed Forces said on Saturday.