It must take on new roles if it is to be relevant for the new security challenges of the 21st Century and it needs new means to carry out this task.

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Russia quickly denied Japan's accusation, but the simultaneous spats on both Japan's northern and southern borders underscore the regional security challenges faced by a new Japanese prime minister elected on a promise to toughen his country's defense of its islands.

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While there were clear benefits for businesses to be had from the new reality, it also raised challenges around security.

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One of the greatest challenges to strengthening cyber security is that new technology has been reactive rather than preventive.

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Mr Speaker, among all the security challenges to citizens of this country covered by this new strategy, the most serious and urgent remains the threat from international terrorism - with today Britain facing 30 known plots, and monitoring 200 networks and around 2000 individuals.

BBC: In full: Brown security statement

Reflecting the new challenges of our time, he put new emphasis on cyber security, development and climate change, and made sure that homeland security is fully integrated into our efforts.

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Mr Speaker, emerging from all the experience and lessons learnt of the last decade is the clear conclusion that we are strongest when we combine the resources of our military, police and security and intelligence services with effective diplomacy and when we work closely with international partners to confront the new global challenges and bring about change.

BBC: In full: Brown security statement