International unions are organizations formed by countries or groups to promote cooperation and address common issues. These unions can focus on various areas, such as trade, labor rights, or environmental protection. Examples include the European Union and the African Union, which aim to enhance collaboration among member states. These unions often create agreements and policies that benefit their members, facilitating trade, improving labor standards, and addressing global challenges. By working together, countries can share resources, knowledge, and best practices, leading to improved economic and social outcomes for their populations.