Starships, such as the Executor-class Star Dreadnaught, Viscount-class Star Defender and the EF76 Nebulon-B escort frigate, began using laser cannons as anti-starfighter defenses. These weapons were later engineered to fire beams with sufficient accuracy and power to intercept enemy missiles from long range: the point-defense cannon, mounted on Zann Consortium Crusader-class corvettes, was an example.