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Common Security and Defence Policy meaning

Published by a LexisNexis EU Law expert
What does Common Security and Defence Policy mean?
In practice, the Common Security and defence policy (CSDP) is the European Union’s framework for authorising and running military operations and civilian crisis‑management missions, and for developing defence capabilities. It forms part of the EU’s Common Foreign and Security Policy and is set out in Articles 42–46 of the Treaty on European Union. Key legal features include Council Decisions (generally by unanimity) establishing missions and mandates, Status of Forces/Status of Mission Agreements (SOFAs/SOMAs) on privileges and immunities, and capability development via the European Defence Agency and, for participating states, Permanent Structured Cooperation (PESCO). England & Wales, Scotland and Northern Ireland: following Brexit, the UK does not participate in CSDP and the Trade and Cooperation Agreement excludes CFSP/CSDP. The term is encountered in cross‑border public international law, defence procurement with EU bodies, and recognition of EU mission immunities; any UK cooperation would be by specific international agreement. Ireland: as an EU Member State, Ireland participates in CSDP on a case‑by‑case basis, consistent with its neutrality policy and the “triple lock” for overseas deployments. Usage of the term is broadly consistent across the UK and Ireland, with the principal divergence being post‑Brexit non‑participation by the UK.
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PRACTICE NOTES
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