Treaty of Nice

The Treaty of Nice, signed in 2001 and effective in 2003, aimed to reform the institutions of the European Union to prepare for its expansion from 15 to 27 member states. It adjusted voting weights in the Council, reformed the structure of the European Parliament, and clarified decision-making processes. The treaty also enhanced cooperation in areas like justice and home affairs. Overall, the Treaty of Nice was significant in shaping how the EU operates, ensuring it could function effectively with an increasing number of members.