In the two months since Russia attacked Ukraine, the United States has thus far lived up to its reputation for ambivalence toward the burgeoning democracy. It has committed aid to Ukraine in fits and starts and has sought to avoid an escalation with Russia at the expense of more uncompromising support for Ukraine’s defense.

But Washington can and should do more. The United States can shore up regional stability, global security, and the liberal international order by working to ensure a Ukrainian victory.