A political union is a formal agreement between two or more political entities, such as countries or regions, to work together for common goals. This collaboration often involves shared governance, economic policies, and defense strategies. Political unions can enhance stability and promote cooperation among member states. One well-known example of a political union is the European Union, which allows member countries to collaborate on various issues, including trade, security, and environmental policies. Political unions can help smaller nations gain strength through collective action and provide a platform for addressing regional challenges.