Russian President #VladimirPutin has once again boasted of #Russia’s “invincible” nuclear arsenal, unveiling new advancements in the Burevestnik cruise missile and the Poseidon underwater drone. At an awards ceremony for defence developers, #Putin claimed the Burevestnik has a range that “surpasses all known missile systems” and hinted that NATO had witnessed its latest test. The nuclear-powered missile, known as “Skyfall” in #NATO terminology, is designed to fly for days and strike from unpredi