The blaze around 300 miles from the Ukrainian border triggered a series of huge explosions - as Kyiv warns Moscow is preparing to attack nuclear plants.
The U.S. Air Force already operates the MQ-9 Reaper and the RQ-4 Global Hawk in Europe. The MQ-9 collects intelligence and conducts strikes using bombs and missiles. The RQ-4 is an unarmed spy drone ...
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