From cfr.org: We have started by reinvigorating our bedrock alliances, which did fray in recent years. In Europe, that means improved bilateral relationships, a more productive partnership with the European Union, and a revitalized NATO. I believe NATO is the greatest alliance in history. But it was built for the Cold War. The new NATO is a democratic community of nearly a billion people stretching from the Baltics in the East to Alaska in the West. We’re working to update its strategic concept so that it is as effective in this century as it was in the last.