The study of the relationships among politics and geography, demography, and economics, especially with respect to the foreign policy of a nation: Geopolitics is concerned with the influence of geographic factors, population distribution, and natural resources on a nation's foreign policy, for example, the efforts of a nation to control a canal, a trade route, an oil supply, etc.

Geopolitics is a combination of geographic and political factors relating to or influencing a nation or region.