The National Security Strategy of the United Kingdom (NSS), the British Defence White Paper, was published in March 2008. Its objective is to replace the Strategic Defence Review of 1998, now obsolete, and evaluate the factors which could present new threats to the United King-dom, setting out the broad lines of defence policy for the years to come. A comparison between the NSS and the French Livre blanc sur la défense et la sécurité nationale of June 2008 is an interesting exercise.