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National security

The Cabinet Office coordinates the government's response to civil emergencies, terrorist incidents and international crises. We work in partnership with all government units with a security or intelligence remit as well as security and intelligence agencies.

• National Security Strategy and Strategic Defence and Security Review

Who we work with

• Secret Intelligence Service (SIS), often called MI6 [external website]
• Government Communication Headquarters [external website]
• Security Service, often called MI5 [external website]

Government intelligence machinery also includes:

• Defence Intelligence Staff - part of the Ministry of Defence (MoD) [external website]
• Joint Terrorism Analysis Centre [external website]
• central intelligence machinery based in the Cabinet Office

Current UK threat level

Information about the national threat level is available from:

• Security Service [external website]
• Home Office [external website]

Information on the risks of terrorism for British nationals overseas can be found on the Foreign and Commonwealth Office website [external website].