"The Cold War may well be remembered, then, as the point at which military strength, a defining characteristic of "power" itself for the past five centuries, ceased to be that. The Soviet Union collapsed, after all, with its military forces, even its nuclear capabilities, fully intact. The advance of technology, together with a culture of caution that transcended ideology, caused the nature of power itself to shift between 1945 and 1991: by the time the Cold War ended, the capacity to fight wars no longer guaranteed the influence of states, or even their continued existence, within the international system."