The 38th edition of the SIPRI Yearbook analyses developments in 2006 in o Security and conflictso Military spending and armamentso Non-proliferation, arms control and disarmament The SIPRI Yearbook contains extensive annexes on the implementation of arms control and disarmament agreements and a chronology of events during the year in the area of security and arms control. The annual accounts and analyses are extensively footnoted, providing a comprehensive bibliography in each subject area.