 I'm going to question the premise of the question, because I think framing it as global engagement is in some ways the wrong question. I think the U.S. has plenty of scope to remain engaged globally in basically every region. That doesn't necessarily mean that we're going to provide security guarantees to every country and every region going forward, because I do think we are overstretched, and I think we probably can't rebuild to primacy. But I really hate the notion that engagement is about military engagement only.