This data visualization was produced by Google as part of the Google Ideas INFO (Illicit Networks, Forces in Opposition) Summit with support from the Igarape Institute and data provided by the Peace Research Institute Oslo (PRIO) small arms database. The visualization includes >1 million individual import and export data points from annual custom reports and maps the transfer of small arms, light weapons and ammunition across 250 nation states and territories around the world between 1992 and 2010.