Which countries are interdependent?

Countries are interdependent in various ways, often through trade, economics, and diplomacy. For example, the United States and China have a significant interdependence due to their extensive trade relationships and economic ties. Similarly, European Union member states are interdependent through shared policies, trade agreements, and collective security arrangements. This interdependence can enhance cooperation but also lead to vulnerabilities, as economic or political issues in one country can impact others.