Simple Definition:
Geopolitics is the study of how geography [physical features and characteristics of a location or area] and political factors [the actions and decisions made by governments and political bodies] interact to shape the relationships between countries and regions.
For example, when analyzing the geopolitical situation in the Middle East, one might consider how the region’s oil reserves influence global politics and the relationships between different countries.
Very Simple Definition:
Geopolitics is the study of how geography and politics affect the relationships between countries and regions.
For example, we can think about how the location of a country near the ocean can affect its trade and alliances with other nations.