Granted rare access inside the Kremlin, CNN's Fred Pleitgen attends a meeting between Russian president Vladimir Putin and the president of Kazakhstan. | CNN International

Russian President Vladimir Putin on Wednesday ordered his top officials to draft proposals on possible nuclear weapons testing after US President Donald Trump said last week that the U.S. would resume such tests. Putin said that Russia had always strictly adhered to its obligations under the Comprehensive Nuclear Test Ban Treaty but that if the United States or any nuclear power tested such a weapon, then Russia would do so too. #putin #russia #nuclear | CGTNEurope