What did blood and iron mean to Bismarck?

"Blood and iron" was a phrase used by Otto Von Bismarck to emphasize the importance of military power and industrial strength in achieving national unification and state goals. It reflected his belief that realpolitik, rather than diplomacy or speeches, was essential for unifying Germany. Bismarck advocated for a strong military and industrial base, seeing these elements as crucial to securing Germany's place in Europe. This approach ultimately led to the unification of Germany under Prussian leadership in the late 19th century.