An arms dealer is a person or company that sells weapons and military equipment. They operate in various markets, supplying firearms, ammunition, and other military supplies to governments, private security firms, and sometimes non-state actors. The trade can be legal or illegal, depending on the regulations of the countries involved. Arms dealers often navigate complex international laws and regulations, such as those set by the United Nations and various national governments. The industry is closely monitored due to concerns about human rights violations and the potential for weapons to fuel conflicts, making ethical considerations a significant aspect of the trade.