Fences, drones and roadblocks: How The Hague ramped up security for NATO summit
相似影片：Fences
NATO conducts major 'readiness' exercise across frontline European states
Dutch police break up climate protest near The Hague ahead of NATO summit
EU and allies must 'accelerate' work on Ukraine's NATO-like security guarantees, Costa says
NATO must boost air and missile defences fourfold to counter Russia's threat, Rutte says
Drones transport blood to battlefield for life-saving medical attention in NATO exercise
