Regional unions are groups of countries that come together to promote economic, political, and social cooperation within a specific geographic area. These unions aim to enhance trade, improve security, and foster cultural exchange among member nations. Examples include the European Union and the African Union. These organizations often establish common policies and regulations to facilitate collaboration. Member countries may benefit from shared resources, joint initiatives, and collective bargaining power on the global stage. Regional unions can also help address regional challenges, such as environmental issues or conflicts, by promoting dialogue and cooperation among nations.