Rogue Drones Threaten Europe's Borders as EU Plans Alliance
Rogue drones tested Europe's borders, with NATO jets shooting down drones in Polish airspace and Denmark closing airports.
Russia is blamed for drone incidents but denies involvement.
EU officials evaluated gaps in detection and response for NATO's eastern flank and rejected Estonia-Lithuania's funding request.
Ursula von der Leyen pledged 6 billion euros for a drone alliance with Ukraine.
EU leaders will discuss meeting outcomes at the Copenhagen summit.