The Court of Justice of the European Union (CJEU) is the judicial authority of the European Union, established to ensure the uniform interpretation and application of EU law across member states. It plays a vital role in resolving legal disputes involving EU institutions, member states, and individuals, while also providing a platform for preliminary rulings that help national courts interpret EU law consistently. The CJEU consists of two main bodies: the Court of Justice and the General Court, together ensuring justice within the EU framework.