 Brookings Visiting Fellow Tara Varma. This is the question also that in a way this summit and future NATO summits will have to answer regardless of the U.S. presidential election, which is how does it remain relevant to its core mission, which is the defense of the North Atlantic region? And how does it remain relevant to today's challenges, all the while not superseding or subduing one to the other? How do you do both? How do you think about them? How do you find this common ground?