The 49th edition of the SIPRI Yearbook analyses developments in 2017 in security and conflicts; military spending and armaments; non-proliferation; arms control; and disarmament.

SIPRI is an independent international institute dedicated to research into conflict, armaments, arms control and disarmament. Established in 1966, SIPRI provides data, analysis and recommendations, based on opens sources, to policymakers, researchers, media and the interested public.