SIPRI's Research on Military Spending and Armaments

Military expenditure
Monitors developments in military expenditure worldwide and maintains the most
comprehensive, consistent and extensive data source available on military expenditure.

The arms industry
Collects, describes and analyses data on arms sales and other economic indicators
relating to the world’s major arms-producing companies, shedding light on an industry
segment that generally lacks transparency.

International arms transfers
Monitors and analyses international transfers of major conventional arms, highlighting
trends in supplier–recipient relationships and helping to identify potentially
destabilizing build-ups of weapons and the sources of weapons used in conflicts.