J-, K- and N-class destroyer
The J, K and N class consisted of 24 destroyers built for the Royal Navy beginning in 1938. They were a return to a smaller vessel, with a heavier torpedo armament, after the Tribal class that emphasised guns over torpedoes. The ships were built in three flotillas or groups, each consisting of eight ships with names beginning with "J", "K" and "N". The flag superior of the pennant numbers changed from "F" to "G" in 1940.
HMS Javelin in 1941
Church service aboard HMS Javelin, August 1940. Note the 4-inch QF Mk V anti-aircraft gun at upper left and the depth charges at bottom right
HMAS Nepal underway
In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort
larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were originally conceived in 1885 by Fernando Villaamil for the Spanish Navy as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War.
USS Arleigh Burke, the lead ship of her class of guided-missile destroyers.
The destroyers of the US Navy's Zumwalt-class, pictured here sailing with a Littoral combat ship (LCS) are the longest and heaviest destroyers currently in service.
The Italian Caio Duilio, belongs to the Horizon-class of Franco-Italian designed first-rate frigates.
Fernando Villaamil, credited as the inventor of the destroyer concept, died in action during the Battle of Santiago de Cuba in 1898.