At the end of WWⅡ, and through the Cold War which followed, countries like China, Korea and Germany were left divided, while other countries, like those of the former USSR, were lumped together as part of a single state.
二次大戰結束，東西冷戰之後，有一國兩治如中國、韓國與西方的德國；也有從多國一治到分家的如過去的蘇俄。