ASTANA, Kazakhstan — Belarusian President Alexander Lukashenko has a warning for the West: Do not push Russian President Vladimir Putin into a corner. Russia has nuclear weapons for a reason and crossing Putin’s “red lines” in Ukraine would be a mistake, the strongman and close Kremlin ally said in an exclusive interview Friday. And you don’t need nuclear weapons. Russia will cope without them.”The Kremlin has stoked growing nuclear fears as its military retreats on the battlefield and disquiet grows at home. “If nuclear weapons are used even by one country, it will cause a chain reaction.

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