designed for detection of enemy aircraft and control of friendly combat air patrol, and the minelaying destroyer. The USS Truxtun (launched in 1964) was the first of a class of nuclear-powered destroyer-type ships, officially categorized as frigates.

See E. Brookes, Destroyer (1962); E. J. March, British Destroyers: A History of Development 1892-1953 (1966); Jane's Fighting Ships (pub. annually since 1897).

Fast naval vessel used to protect other ships. The term was first applied to vessels built in the 1890s to protect battleships from torpedo boats. By World War I destroyers were often sent ahead of the battle fleet to scout for the enemy, beat back its destroyers with cannon fire, and then launch torpedoes against its battleships and cruisers. When the submarine became the main torpedo-launching vessel, destroyers armed withdepth charges protected convoys and battle fleets against submarine attack. In World War II, with the addition of radar and antiaircraft guns, its escort role included air defense. Modern destroyers are run by a crew of about 300 and equipped with surface-to-air missiles, antiship missiles, and one or two big guns. Many carry submarine-hunting helicopters, and some carry cruise missiles.

Before World War II, destroyers were light vessels without the endurance for unattended ocean operations; typically a number of destroyers and a single destroyer tender operated together. During and after the war, larger and more powerful destroyers capable of independent operation were built, particularly as cruisers ceased to be used in the 1950s and 60s.

Early history

The emergence of the destroyer and development up until World War II was related