A more thorough explanation:

Definition: Interdependence in international law refers to the reliance of countries on each other to ensure their mutual subsistence and advancement.

Example: One example of interdependence is the global economy. Countries rely on each other for trade and investment, and the success of one country's economy can have an impact on others. For instance, if a major trading partner experiences an economic downturn, it can affect the exporting country's economy as well.

Explanation: Interdependence means that countries are connected and rely on each other for various reasons. In the example of the global economy, countries depend on each other for trade and investment, and the success of one country's economy can have an impact on others. This illustrates how countries are interconnected and how their actions can affect others.