A self-propelled gun is a type of artillery that combines a cannon with a mobile vehicle, allowing it to move and fire without needing to be towed. This design enhances its operational flexibility, enabling it to quickly reposition on the battlefield and provide fire support. These vehicles are often equipped with tracks or wheels, similar to tanks, and can be used in various military operations. Self-propelled guns are designed to deliver powerful artillery fire while offering protection for the crew, making them an essential component of modern military forces, such as those used by NATO countries.