Drones transport blood to battlefield for life-saving medical attention in NATO exercise
相似视频：Drones transport blood to battlefield for life
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NATO conducts major 'readiness' exercise across frontline European states
NATO must boost air and missile defences fourfold to counter Russia's threat, Rutte says
Rising deaths, fake pills, gang violence: How the EU is struggling to cope with illegal drug problem
Firefighters battle wildfires in Greece and Turkey, prompting evacuations and emergency response
