With his original war aims in shambles, a desperate Vladimir Putin is openly threatening nuclear warfare in Ukraine. The rhetoric of nuclear retaliation and escalation is a risk to the entire world, and, yes, you should be alarmed.
Anatol Lieven is senior research fellow on Russia and Europe at the Quincy Institute for Responsible Statecraft.
Vladimir Putin’s war on Ukraine is a horrific, unconscionable act. NATO’s expansionist policy made such an invasion more likely. Both of these things are true.