Why the US won’t send troops to Ukraine
Biden administration has consistently ruled out the deployment of US troops. “Let me say it again: Our forces are not — and will not — be engaged in the conflict with Russia in Ukraine,” the president said in a Thursday address. Despite the warnings of American involvement from commentators on the Trumpist right and “anti-imperialist” left, there are no signs of this policy changing. Nuclear weapons are the chief reason why.
The logic of mutually assured destruction that defined the Cold War still works, to some degree: Russia’s arsenal makes any direct intervention in Ukraine riskier than any rational American leader could tolerate. In a sense, then, Russia’s nuclear weapons make it less likely that the conflict will kick off World War III.
Putin himself has suggested as much. In his speech declaring war on Wednesday night, he warned that “anyone who would consider interfering from the outside” will “face consequences greater than any you have faced in history” — a thinly veiled threat to nuke the United States or its NATO allies if they dare intervene.