Russian intercontinental ballistic missile systems being paraded through Moscow, May 2023
Shamil Zhumatov / Reuters

To hear U.S. officials tell it, there is little risk that the war in Ukraine will lead to nuclear escalation. “We don’t have any indication that Mr. Putin has any intention to use weapons of mass destruction—let alone nuclear weapons,” said White House spokesperson John Kirby in January. At a Senate hearing in early May, Director of National Intelligence Avril Haines stated that Russia was “very unlikely” to use its nuclear arsenal. Yes, CIA Director William Burns said a February speech, the United States must take Putin’s nuclear saber rattling seriously. But the purpose of such

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