Iran is testing the subsystems of Bavar (Belief) 373 missile defense system - the Iranian version of the sophisticated S-300 long-range air-defense missile system.
Chinese People’s Liberation Army, (PLAAF) "red flag" test range in northwest is code named area 52..It might be just a might be a coincident but I have a feeling that they were inspired by what the USAF's Tonopah Test Range has to offer in training next generation of combat pilots.