The European Union (EU) is a political and economic union of 27 European countries that aims to promote cooperation and integration among its member states. The EU was established in the aftermath of World War II as a way to promote peace and stability in Europe and has evolved into a multi-faceted international organization with a range of competencies in areas such as trade, environmental policy, and security.

The EU is based on the principles of democracy, the rule of law, and respect for human rights. It has its own institutions, including the European Council, the European Commission, and the European Parliament, which work together to set the EU’s policies and make decisions on behalf of its member states.

The EU has also developed a single market, which allows for the free movement of goods, services, capital, and people among its member states. It has also established a common currency, the euro, which is used by 19 of its member states.

In addition to its economic and political functions, the EU also plays a significant role in global governance, particularly in areas such as climate change, development, and human rights. As a major player on the international stage, the EU is often seen as a model for regional integration and cooperation.