This briefing assesses Boko Haram's arsenal, where those munitions come from, and how best to reduce the flow of weapons to the group. The group’s weaponry is predominantly of Russian and Eastern European stock looted from police stations and military bases within Nigeria. It will be impossible to stem the flow of weapons to Boko Haram completely. Ultimately, it will be efforts to tackle the deep structural socio-economic problems in northern Nigeria that will have the most success in fundamentally weakening Boko Haram.