For example, the geographies of the United States and China—both with large expanses of land bounded by large natural barriers of water and mountains—created the inclination for them to be one big whole, increasing the commonalities of their people (e.g., shared language, government, culture, etc.). In contrast, the geography of Europe (i.e., having many more natural boundaries within it) reinforced its divisions into different states/countries, leading to fewer commonalities among its people (e.g., different languages, governments, cultures, etc.).
