Defense is the competence of the European Union member states. Therefore, countries should cooperate rather than have a single army, according to Josep Borrell, the EU’s top diplomat. “Defense is a member state competence. The point is not about having an EU army but rather to work better together among the 27 armies,” he says. For years, France, Germany, and even Hungary have called for a single EU army. But in the past few months, as European leaders have been engaged in intense debates about the EU’s defense ambitions, voices calling for an EU army have largely fallen silent. EU strategy Ea…