How US is using strategic ambiguity to counter Putin’s nuclear threats

Biden administration officials have tiptoed around offering specifics in response to the specter of Russia using nuclear weapons, deploying a form of strategic ambiguity in an attempt to avoid escalating the conflict.

U.S. officials have in recent days repeatedly warned of severe consequences should Moscow deploy nuclear weapons in its war in Ukraine, though they have not outlined what those consequences would involve. And they have repeatedly said they are taking talk of nuclear weapons seriously, but have not publicly shifted the country’s nuclear posture in response. 

Experts say the U.S....