A torpedo is a self-propelled weapon designed to travel underwater and explode upon impact with a target, typically a ship or submarine. It is launched from various platforms, including submarines, ships, and aircraft. Torpedoes are equipped with guidance systems that allow them to navigate toward their target, making them effective in naval warfare. The development of torpedoes began in the 19th century, with significant advancements during both World Wars. Modern torpedoes, such as the Mark 48 and Spearfish, utilize advanced technology for improved accuracy and range. They play a crucial role in naval strategy and defense operations.