 The problem is that most of those ideas haven't worked out particularly well. The NATO mission in Afghanistan ultimately ended in failure. NATO enlargement is an issue that people disagree on, but it's hard to argue that it has led to a more peaceful Europe when you consider that the Russian reaction to it was eventually to illegally invade Ukraine. So in a sense, NATO can't point to the last 20 or 30 years as a long series of success stories.