The national security strategy of the United Kingdom: Security in an interdependent world / Presented to Parliament by the Prime Minister, by command of Her Majesty, 19 March 2008, Cm 7291
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"This strategy draws on the wide range of knowledge and activity across departments, agencies and forces which contributes to a single overarching national security objective of protecting the United Kingdom and its interests. It sets out the lessons learned from recent years, including experiences of terrorism and civil emergencies, not just in the UK but also overseas."