The European Union (EU) is a political and economic union of 27 European countries that are committed to working together in areas such as trade, migration, security, and environmental protection. The EU was established in the aftermath of World War II to promote peace and stability in Europe. It has evolved over the years to include a common currency (the Euro), a single market, and a shared foreign and security policy. The EU is governed by a complex system of institutions, including the European Parliament, the European Commission, and the European Council, which work together to make decisions and set policies for the Union. The EU plays a significant role in shaping the political, economic, and social landscape of Europe, and its decisions impact the lives of millions of people across the continent.