aerial view of abandoned airstrips from Željava underground air base

dcim 100media dji_0231 jpg infrastructure road waterway reservoir highway river transport asphalt soil freeway lane terrain track geology valley coast aerial view abandoned airstrips željava underground air base abandoned airbase airport military base aerodrome force airfield asphalt bihac croatia destroyed empty former highway horizon jna journey landing strip line military nature outdoor path plane road straight street transportation travel underground war yugoslav people's army wars