National unification refers to the process of bringing together different regions or groups within a country to form a single, cohesive nation. This often involves overcoming political, cultural, or social divisions that may have existed historically. Unification can lead to a stronger national identity and improved governance. One notable example of national unification is the unification of Germany in 1871, when various independent states came together to form a single nation under the leadership of Otto von Bismarck. This process significantly altered the political landscape of Europe and set the stage for future developments in the region.