The United States and its NATO allies are engaged in a proxy war with Russia. They are supplying thousands of munitions and hopefully doing much else—sharing intelligence, for example—with the intent of killing Russian soldiers.

Thus far the Biden administration has done an admirable job of winning the information war, mobilizing the NATO alliance, and imposing crippling (if not yet complete) sanctions on the Russian economy. But beyond those measures to prosecute this proxy war as a war, it is stumbling.