Research Guides: Data Sets: SecurityData

International Security

Arms Transfers Database: SIPRI
"The SIPRI Arms Transfers Database is a fully searchable online database containing information on all international transfers of seven categories of major conventional weapons from 1950 to the most recent full calendar year."
Correlates of War (COW)
"The original and continuing goal of the project has been the systematic accumulation of scientific knowledge about war." Data sets on conflicts, alliances, material capabilities, and more.
Military Expenditure Database: SIPRI
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"The SIPRI Military Expenditure Database provides military expenditure data by country in the following three formats:

* in local currency, at current prices. 1988-2008
* in US dollars, at constant (2005) prices and exchange rates, 1988-2008
* as a share (%) of gross domestic product (GDP), 1988-2007

SIPRI military expenditure data is based on open sources only, including a SIPRI questionnaire which is sent out annually to all countries included in the database."
National UFO Reporting Center
Dedicated to the Collection and Dissemination of Objective UFO Data.