Half of the world's leading exporters of arms are European Union member states. First up is Italy whose arms industry is growing, having long consolidated a place in the global top 10 of arms exporters. Weighing the full impact of this trade is complicated by the lack of available information on where these arms end up. Lighthouse Reports has launched a new project, #EUarms, in partnership with Bellingcat, that aims to fill this information void and connect arms manufacturers to the final destination of their exports, using only open source investigation tools.