## Overview The **European Union (EU)** is a unique political and economic partnership of 27 European countries that have chosen to work together to promote peace, stability, and prosperity across the continent[4]. Founded in the aftermath of World War II, the EU’s original goal was to foster cooperation among nations to prevent further conflict. Today, it is a major global actor in business, technology, regulation, and international affairs[6]. ## What the EU Does The EU operates as a **supranational union**, meaning it has authority over certain policy areas that transcend national borders, such as trade, competition, environmental standards, and digital regulation[1]. Its institutions—including the European Commission, Parliament, and Council—create laws and policies that member states must adopt, ensuring a level playing field for businesses and citizens across the bloc[6]. The EU’s **Single Market** allows goods, services, capital, and people to move freely, though persistent regulatory barriers still hinder full integration, particularly in services[5][7]. The euro, used by 20 member states, is one of the world’s leading currencies. ## History The EU traces its roots to the 1951 European Coal and Steel Community, founded by six countries: Belgium, France, Germany, Italy, Luxembourg, and the Netherlands[4]. Over decades, successive treaties expanded its scope and membership. The **Maastricht Treaty** (1993) formally established the EU, and subsequent enlargements brought in countries from Central and Eastern Europe after the Cold War[1]. The **United Kingdom’s exit** in 2020 (Brexit) reduced membership from 28 to 27[4]. ## Key Achievements - **Peace and Stability**: The EU is widely credited with helping maintain peace in Europe for over 70 years. - **Economic Integration**: The Single Market and euro have boosted trade, investment, and economic resilience. - **Regulatory Leadership**: The EU