Chinese and Russian fighter pilots have been testing their skills in an unprecedented series of maneuvers in southeast Russia at the 'Aviadarts exercise', also called Russia's Top Gun—a reference to the U.S. Navy’s fighter tactics schoolhouse. Russia's next-generation fighter prototype, the Sukhoi-T-50 made a cameo appearance at the Aviadarts Exercise in May 2014. Analysts view it as significant that Moscow is inviting Chinese fighter pilots to test their mettle against the best Russia has to offer.