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Please stop adding unsourced content, as you did on Mikoyan-Gurevich MiG-21. This violates Wikipedia's policy on verifiability. If you continue to do so, you may be blocked from editing Wikipedia. Dave ♠♣♥♦™№1185©♪♫® 10:04, 1 March 2019 (UTC)
You may be blocked from editing without further warning the next time you add unsourced material to Wikipedia, as you did at AIM-120 AMRAAM. Dave ♠♣♥♦™№1185©♪♫® 10:05, 1 March 2019 (UTC)