Commentary The failure to build democracy in Afghanistan, and the resulting withdrawal of U.S. forces, is causing concern in Europe about how much the continent can rely on its long-time ally, the United States. When push comes to shove—such as Ukraine when Putin invaded, Taiwan, which the United States does not recognize as a state, and the Philippines, whose maritime territory China is gradually stealing—the United States has failed its allies. In response, Europeans such as French President Emmanuel Macron, Dutch Prime Minister Mark Rutte, and the European Union’s Thierry Breton, are right to renew calls for a stronger and more coordinated EU military structure. Currently, the EU has only 3,000 troops divided into two national battle groups for rapid deployment. In 1999, the EU agreed to build a joint capability to deploy up to 60,000 troops overseas within 60 days. That plan should be renewed and accelerated. Macron and …