Coastal defense guns are large artillery pieces designed to protect coastlines from naval threats. They are typically positioned onshore or in coastal fortifications and can fire heavy shells over long distances. These guns were crucial during conflicts, especially in the early to mid-20th century, to deter enemy ships and protect strategic ports. These weapons often feature advanced targeting systems to improve accuracy and effectiveness. Coastal defense guns played a significant role in military strategies during World War I and World War II, with notable examples like the Dora Gun and the M1910 coastal defense gun.