The graphic above was created to illustrate the market for small arms able to be transported by men on foot, rather than the full array of weapons systems discussed in the article below. It links to a working version that you can use to understand the details of this import- export activity. The above graphic was created, ironically, by Google using data from the Peace Research Institute Oslo,which for decades has analyzed customs data for weapons across the globe, figuring out which countries are buying and selling small arms, light weapons like portable artillery systems, and ammunition.