Privateering was a practice in which private individuals or ships were authorized by a government to attack enemy vessels and seize their cargo. This authorization came in the form of a letter of marque, which allowed privateers to operate legally during wartime. Privateering was often seen as a way for nations to enhance their naval power without the expense of maintaining a large fleet. Privateers played a significant role in maritime conflicts from the 16th to the 19th century. They targeted enemy trade routes and ships, contributing to the economic warfare of the time. However, the practice declined with the rise of modern naval warfare and the establishment of international laws governing piracy and maritime conduct.