Summary: The European Parliament marked 40 years of Spanish and Portuguese EU membership with addresses from King Felipe VI of Spain and President Marcelo Rebelo de Sousa of Portugal. They emphasized the transformative impact of EU membership, the necessity of continued European cooperation, the benefits of international alliances, and the commitment to European integration. Both leaders stressed the importance of unity, defense cooperation, and the strengthening of Europe's role in the world for a more stable and prosperous future.