"Once the Eastern Bloc collapsed, what I call 'historical spontaneity' prevailed and the countries that were subject to Soviet control naturally gravitated to the West. That's where they sought their security; I don't think there was a way to avoid that. If we tried to exclude them, we would have today not one Europe, we would have three Europes: one in the West, one in the middle and one in the East, and the middle would be insecure and a tempting target. The insecurity felt [today] by Eastern Europe would be replicated on a much larger and more consequential scale."