輕兵器
The arms trade, or small arms market, includes both authorized transfers of small arms and light weapons (and their parts, accessories, and bullets) and illicit transfers of such weapons. Small arms and light arms are those that can be transported by one or two people, or carried by pack animal or vehicles, ranging from firearms like pistols and light machine guns to man-portable air-defense systems (MPADS), mortars, and rocket-propelled grenades (RPGs). The trade occurs globally, but is concentrated in areas of armed conflict, violence, and organized crime. In terms of actions that are illicit, this trade involves the illegal trafficking of small arms and the exchange of money and drugs for small arms, which are all commodities that cross borders around the globe. These weapons are not only the choice for a majority of regional conflicts today, but also for many terrorist groups operating around the world. Legal transfers are generally defined as those approved by the involved governments and in accordance with national and international law. Black market (illegal) transfers violate either national or international law and take place without official government authorization. Gray market transfers are those of unclear legality that do not belong in either of the other categories.