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British travellers to the US must register with the Electronic System for Travel Authorisation (ESTA) before their journey
The National Security Secretariat coordinates security and intelligence issues of strategic importance across government and supports the National Security Adviser and National Security Council. The Joint Intelligence Organisation produces independent all-source assessments on issues of national security and foreign policy...
These documents relate to the National Security Bill 2022.
NSTIx existed until 2025 as an independent unit working across the UK government national security science, innovation and technology system.
Chloe Squires served as the Director General for Homeland Security in the Home Office from 2021 to 2025. Prior to this appointment, she was Director National Security in the Home Office and led on a range of national security issues...
Find out about terrorist threat levels, national measures against terrorism and how to report suspect activity
FCDO travel advice for USA. Includes safety and security, insurance, entry requirements and legal differences.
Advice on how to stay secure online from the UK's National Cyber Security Centre.
Britain’s defence industry will benefit from an £80 million skills boost to increase places on key strategically-relevant courses.
The Home Secretary updated on government action to counter state threats following the charging of three Iranian nationals under the National Security Act 2023.
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