At a critical time for Ukraine and European security, the EU is committed to becoming more responsible for its own defence and better equipped to act and deal autonomously with immediate and future challenges and threats, including Russia’s war and its repercussions on European security, which constitute an existential challenge for the EU. The common security and defence policy (CSDP) is an integral part of the EU’s common foreign and security policy (CFSP). The CSDP is the main policy framework through which Member States can develop a European strategic culture of security and defence, address conflicts and crises together, protect the Union and its citizens, and strengthen international peace and security. As a result of the tense geopolitical context, the CSDP has been one of the fastest developing policies over the last 10 years.