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Continue to ChatRussia develops heavy drone, promises S500 missile system by 2017 https://www.defencetalk.com/russia-develops-heavy-drone-promises-s500-missile-system-by-2017-62226/
Russia develops heavy drone, promises S500 missile system by 2017 https://www.defencetalk.com/russia-develops-heavy-drone-promises-s500-missile-system-by-2017-62226/