Anchoring Britain’s Defence: A Critical Examination of the Royal Navy’s role in National Security

By Deckhand Scholar

Message from the Editor

The author examines how the Royal Navy contributes to Britain’s national security by balancing deterrence, economic protection, global influence, and homeland defence against the challenges of limited resources, technological change, and evolving threats. A 10 minute read.

National security is defined as the protection of a nation against threats such as terrorism, war, espionage, and the safeguarding of its citizens, economy, and institutions. Within this framework, the Royal Navy has long stood as a cornerstone of Britain’s defence strategy. It safeguards maritime interests, ensures freedom of navigation, and projects power across the globe. Yet its role is complex. The British Army carries primary responsibility for homeland defence under the UK’s Strategic Defence Review (SDR) 2025. The Royal Navy, alongside the Royal Air Force, contributes to deterrence, ra…

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