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Nearly 100 countries have military drones, and it's changing the way the world prepares for war | Center for a New American Security (en-US)
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Do Armed Drones Counter Terrorism, Or Are They Counterproductive? Evidence from Eighteen Countries | Belfer Center for Science and International Affairs
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Military drones are swarming the skies of Ukraine and other conflict hot spots – and anything goes when it comes to international law
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