Geophysical reasons refer to natural factors such as mountains, rivers, or coastlines that shape and determine the borders between countries or regions.
Related terms
Political Reasons: Political reasons are factors related to government decisions, policies, or conflicts that influence the shifting of borders between countries or regions.
Treaty: A treaty is an official agreement made between two or more countries to establish or change their borders based on political negotiations.
Annexation: Annexation refers to the act of one country taking control over another territory by incorporating it into its own political boundaries.