A light tank is a type of armored fighting vehicle designed for mobility and speed rather than heavy firepower. Typically, light tanks are equipped with a smaller caliber cannon and are used for reconnaissance, support, and rapid assaults. Their lighter weight allows them to traverse difficult terrain and respond quickly to changing battlefield conditions. Light tanks have been used in various military conflicts since the early 20th century, evolving from early models like the Renault FT to modern versions such as the M551 Sheridan. They play a crucial role in combined arms operations, working alongside heavier tanks and infantry units to achieve tactical objectives.