In December 2011, Iran proudly displayed on state television a stealthy U.S. unmanned aircraft it claimed it had downed while conducting reconnaissance overflights. The trophy was a Lockheed Martin RQ-170 Sentinel, an aircraft publicly acknowledged by the U.S. Air Force two years earlier. Even before, the existence of the RQ-170 had been a poorly kept secret. The unmanned aerial system (UAS) was operating out of Afghanistan and flying over Pakistan and Iran for an undetermined period ...


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