Otto von Bismarck was known for his crucial role in the unification of Germany in the 19th century. As the Prussian Prime Minister, he utilized a strategy of "Realpolitik," which emphasized practical considerations over ideological ones. Bismarck orchestrated a series of wars with Austria and France, successfully expanding Prussian territory and dominance in German affairs. The culmination of his efforts was the proclamation of the German Empire in 1871 at the Palace of Versailles. His diplomatic skills also established Germany as a major European power, affecting the balance of power in the continent.