Geographical borders are defined lines that separate different regions, countries, or territories on a map. These borders can be natural, such as rivers and mountains, or artificial, created by human agreements and treaties. They help establish political boundaries and can influence trade, culture, and travel between areas. Borders can change over time due to conflicts, negotiations, or changes in governance. For example, the borders of Europe have shifted significantly throughout history due to wars and treaties. Understanding geographical borders is essential for studying geopolitics and international relations.