The Future Relation EU-NATO and Spain

This chapter aims to review the evolution of the relationship between the European Union (EU) and the North Atlantic Treaty Organization (NATO) in recent decades, with the implementation of the EU’s Common Security and Defence Policy (CSDP). Deepening cooperation in the field of security and defence is vital for the EU, considering the implications of the Russian invasion of Ukraine and the current hostile international environment, with increasing geopolitical competition between major and middle powers. Spain must work towards a European Defence Union and a European army capable of acting as a complementary element to NATO.