The reunification was opposed in several quarters both inside and outside Germany, including Margaret Thatcher, Jürgen Habermas, and Günter Grass, out of fear of that a united Germany might resume its aggression toward other countries. Just prior to reunification West Germany had gone through a national debate, called Historikerstreit, over how to regard its Nazi past, with one side claiming that there was nothing specifically German about Nazism, and that the German people should let go its shame over the past and look forward, proud of its national identity, and others holding that Nazism grew out of German identity and the nation needed to remain responsible for its past and guard carefully against any recrudescence of Nazism.