Aircraft guns are weapons mounted on military aircraft, designed to engage enemy targets in the air or on the ground. These guns can vary in caliber and type, including machine guns and autocannons, and are often used for strafing runs or air-to-air combat. Their rapid-fire capability allows pilots to deliver a high volume of fire against enemy aircraft or ground forces. The development of aircraft guns began during World War I, as the need for aerial combat increased. Over the years, advancements in technology have led to more effective and powerful systems, such as the M61 Vulcan and GAU-8 Avenger, which are used in modern military aircraft.