Realpolitik is a political philosophy that emphasizes practical, pragmatic approaches to politics and diplomacy over ideological or ethical concerns. It emerged in the 19th century and is closely associated with the policies of statesmen such as Otto von Bismarck, who prioritized national interest and power over idealistic goals or moral principles.

• Bismarck, O. (2018). Realpolitik: A pragmatic approach to diplomacy. In T. Jones (Ed.), Modern political philosophies (pp. 102-115). Cambridge University Press.