Geopolitical boundaries are the lines that define the territories of different countries and regions. These boundaries can be based on natural features like rivers and mountains, or they can be drawn by historical agreements and conflicts. They help establish where one nation ends and another begins, influencing governance, culture, and economics. These boundaries can change over time due to wars, treaties, or political negotiations. For example, the creation of new countries or the merging of existing ones can alter geopolitical boundaries. Understanding these lines is essential for studying international relations and the dynamics of global politics, such as those involving the United Nations or regional organizations.