But arming the Ukrainian military is not in the best interest of the United States, nor is it in the best interest of Ukraine. It will only worsen a bloody crisis that has already claimed thousands of victims. As I have argued in the past, there is no military solution to this conflict, only a political one; and a new supply of U.S. arms will provide ammunition for Russian leaders who believe, fairly or not, that America is attempting to turn Ukraine into a military base near Russia’s borders. Indeed, as Jeremy Shapiro of the Brookings Institution writes, “If U.S.-provided weapons fail to induce a Russian retreat in Ukraine and instead cause an escalation of the war” — which they almost certainly will — “the net result will not be peace and compromise.”

