Treaties of the European Union is a comprehensive and authoritative edition compiling the foundational legal texts of the European Union. This volume brings together the full English versions of the Treaty on European Union (TEU) and the Treaty on the Functioning of the European Union (TFEU), the two core treaties that establish and regulate the political, legal, and institutional framework of the EU. These texts form the constitutional backbone of the Union and define its powers, objectives, and the rights of its citizens.