"大国" (dàguó) refers to a "great power" or a nation that has significant influence in international affairs. These countries typically possess strong economies, advanced military capabilities, and substantial political influence. Examples of 大国 include the United States, China, and Russia, which play crucial roles in global decision-making and diplomacy. The concept of 大国 is often associated with the ability to project power and influence beyond their borders. This can involve participation in international organizations, forming alliances, and engaging in trade. The actions of 大国 can significantly impact global stability, economics, and security, making their roles vital in the international community.