Anti-aircraft guns are artillery pieces designed to target and destroy enemy aircraft. They come in various calibers and types, ranging from small, rapid-fire guns to larger, more powerful cannons. These weapons are typically mounted on vehicles or fixed installations and are used to protect ground forces and strategic locations from aerial attacks. During conflicts, anti-aircraft guns play a crucial role in air defense systems. They are often used in conjunction with radar systems to detect incoming threats and engage them effectively. Notable examples include the Bofors 40 mm gun and the Flak 88, which were widely used during World War II.