Russian President Vladimir Putin overseeing the test of a hypersonic missile in Moscow, December 2018
Mikhail Klimentyev / Sputnik via Reuters

Few if any wars have been launched with as much nuclear posturing as Russia’s invasion of Ukraine. One week before beginning its offensive, Moscow conducted previously planned exercises of its nuclear launch systems. A few days later, Russian President Vladimir Putin falsely accused Ukraine of building nuclear weapons. When starting the invasion, Putin warned that any outside country standing in Russia’s way would face “consequences such as they have never seen in their history”—a thinly disguised nuclear threat. Almost as soon as the fighting began, Russia’s military attacked and seized Ukrainian nuclear facilities while falsely claiming

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