Hacke argues that the United States is abandoning its long-standing internationalist commitment to Europe. But NATO is a military alliance. To have a military alliance, you must have a military. Germany doesn’t really have one, as Hacke points out. What’s more, it isn’t clear that Germany’s commitment to the alliance is unconditional. I was recently in conversation with national security experts from Europe and the United States. I brought up that if the United States had to rush forces to the Eastern European frontier, they would have to pass through military bases in Germany. I asked if the Germans would permit the free passage of U.S. military forces. The answers ranged from “probably” to “I don’t know.” I assume they would, but the idea that the question would even come up and be answered with less than an absolute “of course” indicates a lack of trust in Germany.