Regional integration is a process where neighboring countries in a specific geographic region come together to form closer economic, political, and social ties. This can involve the removal of barriers to trade, the creation of common policies and regulations, and the strengthening of infrastructure and institutions within the region. Regional integration aims to promote cooperation, increase economic growth, and enhance stability and security among member countries. Some examples of regional integration initiatives include the European Union, the Association of Southeast Asian Nations (ASEAN), and the African Union.