Previous to the invasion of Ukraine, a sense of pessimism seemed to be ubiquitous with respect to Europe. Since the invasion things seem far more optimistic. One might even say that there's a new vitality and unity. Naively one might expect war to do the opposite, but we have a funny way of stepping up to challenges and war is the biggest challenge of all. This unity is not limited to Europe, it's an issue that even Republicans and Democrats seem to agree on. The question is, can we get these benefits in the absence of war. If not, are we doomed to descend into an increasingly fractious political environment?