When it comes to securing Ukraine, the US cannot stay on the sidelines

It’s not enough to stop a war; it must then stay finished.
Among the most critical but least developed elements of a potential arrangement to end Russian President Vladimir Putin’s invasion of Ukraine is the security guarantee that Kyiv will need to deter another attack from Moscow. That will require a deterrent force with substantial presence in Ukraine, including forces from the United States. Deterring future Russian military aggression is an achievable but nonetheless challenging and grave undertaking for the transatlantic community—one that is the subject of ongoing discussions among transatlantic officials following the recent White House leaders’ summit.