Stockholm International Peace Research InstituteStockholm International Peace Research Institute (SIPRI) is an international institute based in Stockholm. It was founded in 1966.
SIPRI was ranked among the top three non-US world-wide think tanks in 2014 by the University of Pennsylvania Lauder Institute's ''Global Go To Think Tanks Report.'' In 2019, SIPRI ranked 31st amongst think tanks globally. Provided by Wikipedia