What is the purpose of an ammunition box or belt in machine gun operation?

The purpose of an ammunition box or belt in machine gun operation is primarily to feed ammunition for sustained firing. Machine guns require a constant supply of ammunition to maintain their rate of fire during combat situations. The ammunition box or belt serves as a reliable and organized means to deliver cartridges into the firing mechanism of the gun, ensuring that it can operate effectively over extended periods without interruption. This continuous feeding capability is essential for the effective use of machine guns, particularly in scenarios where rapid and sustained fire is required to support troops or suppress enemy positions.