How did Otto Von Bismarck use to promote Germany unification?

Otto Von Bismarck promoted German unification primarily through a strategy of "Realpolitik," which emphasized pragmatic and strategic political decisions. He orchestrated a series of wars, including the Danish War (1864), the Austro-Prussian War (1866), and the Franco-Prussian War (1870-1871), each of which fostered nationalistic sentiments and rallied the German states around Prussia. Bismarck skillfully manipulated political alliances and public sentiment, ultimately leading to the proclamation of the German Empire in 1871 at the Palace of Versailles. His diplomatic maneuvers and military victories were crucial in consolidating various German states under Prussian leadership.