What did to dominate German by blood and iron me an?

"To dominate Germany by blood and iron" refers to a phrase associated with Otto Von Bismarck, the Prussian statesman who unified Germany in the late 19th century. It emphasizes the idea that the unification of Germany would be achieved through military power ("iron") and the sacrifices of its people ("blood") rather than through diplomacy or peaceful negotiations. This approach reflected Bismarck's belief in realpolitik, prioritizing practical and often ruthless measures to achieve political goals. Ultimately, it marked a significant shift in the way nations pursued their interests during that era.