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.
Five ships of the Royal Navy have borne the name HMS Ark Royal:
Five ships of the Royal Australian Navy have been named HMAS Sydney, after Sydney, the capital city of New South Wales.
The fourth USS Montgomery (C-9), the lead ship of her class, was an unprotected cruiser in the United States Navy authorized in the Naval Appropriations Act of September 7, 1888. Montgomery served during the Spanish–American War and in World War I and was named for Montgomery, Alabama.
HMS Caroline is a decommissioned C-class light cruiser of the Royal Navy that was the lead ship of her sub-class. Completed in 1914, she saw combat service during the First World War and served as an administrative centre in the Second World War. The ship served as a static headquarters and training ship for the Royal Naval Reserve, based in Alexandra Dock, Belfast, Northern Ireland, for the later stages of her career. At the time of her decommissioning in 2011 she was the second-oldest ship in Royal Navy service, after the ship-of-the-line HMS Victory. Caroline was converted into a museum ship after she was decommissioned. From October 2016 she underwent inspection and repairs to her hull at Harland and Wolff and opened to the public on 1 July 2017 at Alexandra Dock in the Titanic Quarter in Belfast.
USS Prairie (AD-5), formerly Morgan Liner SS El Sol, was built in 1890 by William Cramp & Sons, Philadelphia. She was purchased by the United States Navy on 6 April 1898 from the Southern Pacific Company, and commissioned two days later at New York, Commander Charles J. Train in command.
One ship and three shore establishments of the Royal Navy have borne the name HMS Flycatcher:
The first USS MacKenzie, was laid down by Charles Hillman Ship & Engine Building Company, Philadelphia, 15 April 1897; launched 19 February 1898; sponsored by Master Charles Hillman; and commissioned 1 May 1899.
The third USS Somers, a steel torpedo boat built as a private speculation by Friedrich Schichau, Elbing, Germany, was launched in 1897 as yard No. 450; purchased for the United States Navy on 25 March 1898; commissioned on 28 March 1898 and named Somers the next day.
The K-class submarines were a class of eight submarines of the United States Navy, serving between 1914 and 1923, including World War I. They were designed by Electric Boat and were built by other yards under subcontracts. K-1, K-2, K-5, and K-6 were built by Fore River Shipyard in Quincy, Massachusetts, K-3, K-7, and K-8 by Union Iron Works in San Francisco, and K-4 by The Moran Company in Seattle, Washington. All were decommissioned in 1923 and scrapped in 1931 to comply with the limits of the London Naval Treaty.
USS Powhatan (ID–3013) was a transport ship for the United States Navy during World War I. She was originally Hamburg, a Barbarossa-class ocean liner built in 1899 by AG Vulkan of Stettin, Germany, for the Hamburg America Line. At the outset of World War I the ship was interned by the United States.
The Amiral Charner class was a group of four armoured cruisers built for the French Navy during the 1890s. They were designed to be smaller and cheaper than the preceding design while also serving as commerce raiders in times of war. Three of the ships were assigned to the International Squadron off the island of Crete during the 1897–1898 uprising there and the Greco-Turkish War of 1897 to protect French interests and citizens. With several exceptions the sister ships spent most of the first decade of the 20th century serving as training ships or in reserve. Bruix aided survivors of the devastating eruption of Mount Pelée on the island of Martinique in 1902. Chanzy was transferred to French Indochina in 1906 and ran aground off the Chinese coast in mid-1907. She proved impossible to refloat and was destroyed in place.
Several naval ships were named Helgoland after the island of Heligoland or the Battle of Helgoland, an action during the Second Schleswig War.
Austro-Hungarian Navy 
United States Navy