The European Union’s recent announcement that it is preparing to retaliate if the Trump administration imposes tariffs on EU-made autos leaves no doubt that EU-U.S. cooperation on global trade will be compromised for some time if the tariffs go into effect. Besides whatever damage the conflict could do to U.S. jobs, industry, and consumers, this conflict will jeopardize essential allied collaboration to confront Chinese state capitalism, the underlying cause of much of the current trade conflict. When EU President Jean-Claude Juncker visits Washington on July 25, the administration should use the visit to find ways to step back from this precipice.