“A world where only power matters is a dangerous place. First for small states, then for the middle powers, and ultimately for the great ones. I do not say this lightly. In the 20th century, my country Germany went down this road to its bitter end. It pulled the world into a black abyss.”
Looking at what is currently happening, he probably will. For better or worse, he is one of the most powerful men in Europe and right now especially the EU has to make some big decisions, which will likely have consequences decades from now. Hell Chamberlain went down in history too.