WHMS Algerine was the lead ship of her namesake class of minesweepers built for the Royal Navy during World War II, the Algerine-class minesweepers. Initially assigned to the North Sea, she was transferred to lead the 12th Minesweeping Flotilla. The Flotilla were posted to the Mediterranean to assist with Operation Torch. In 1942, after a successful mine clearing operation off Bougie, she was torpedoed by the Italian submarine Ascianghi, causing Algerine to sink, leaving only eight survivors.
WHMS Bonaventure was a Dido-class light cruiser of the Royal Navy. Bonaventure participated as an escort vessel in Operation Fish, the World War II evacuation of British wealth from the UK to Canada. It was the largest movement of wealth in history.
WHMS Cairo (D87) was a C-class light cruiser of the Royal Navy, named after the Egyptian capital, Cairo. So far she has been the only ship of the Royal Navy to bear the name. She was part of the Carlisle group of the C-class of cruisers.
WHMS Calypso (D61) was a C class cruiser of the Caledon sub-class of the Royal Navy, launched in 1917 and sunk in 1940 by the Italian submarine Alpino Attilio Bagnolini.
WCardina was a cargo ship built in 1919 by the J. F. Duthie & Company of Seattle. She was one of many ships built by the company for the United States Shipping Board.
WElli was a 2,600 ton Greek protected cruiser named for a naval battle of the First Balkan War in which Greece was victorious. She was completed in 1913 and commissioned in 1914. Elli saw action during World War I and in the disastrous Asia Minor Expedition. An Italian submarine sank her before the outbreak of the Greco-Italian War on 15 August 1940 while she sat at anchor.
WRMS Empress of Canada was an ocean liner built in 1920 for the Canadian Pacific Steamships (CP) by Fairfield Shipbuilding & Engineering Company at Govan on the Clyde in Scotland. This ship—the first of three CP vessels to be named Empress of Canada—regularly traversed the trans-Pacific route between the west coast of Canada and the Far East until 1939.
WHMS Escort was an E-class destroyer built for the Royal Navy in the early 1930s. Although assigned to the Home Fleet upon completion, the ship was attached to the Mediterranean Fleet in 1935–36, during the Abyssinia Crisis. During the Spanish Civil War of 1936–1939, she spent considerable time in Spanish waters, enforcing the arms blockade imposed by Britain and France on both sides of the conflict. Escort was assigned to convoy escort and anti-submarine patrol duties in the Western Approaches, when World War II began in September 1939. During the Norwegian Campaign, the ship escorted ships of the Home Fleet, although she did tow her sister HMS Eclipse after the latter ship had been badly damaged by German air attack. Escort was assigned to Force H in late June, and participated in the Attack on Mers-el-Kébir in early July. She was torpedoed a few days later, by an Italian submarine, but was towed for three days towards Gibraltar before she foundered.
WItalian submarine Gemma was a Perla-class submarine built for the Royal Italian Navy during the 1930s. Her name in Italian means a gemstone or jewel.
WSS Lulworth Hill was a British cargo ship completed by William Hamilton & Co in Port Glasgow on the Firth of Clyde in 1940. Lulworth Hill had a single 520 NHP triple-expansion steam engine driving a single screw. She had eight corrugated furnaces heating two 225 lbf/in2 single-ended boilers with a combined heating surface of 7,643 square feet (710 m2), plus one auxiliary boiler.
WFor other ships called SS Oronsay, see List of ships named Oronsay
WUSS PC-496 was a PC-461-class submarine chaser built for the United States Navy during World War II. She sank on 4 June 1943, in the Mediterranean. Although the cause was speculated as a naval mine at the time of her sinking, it was later revealed that PC-496 had been sunk by an Italian submarine.
WHMS Samphire was a Flower-class corvette that served in the Royal Navy.
WHMS Triad was a T-class submarine of the Royal Navy. She was laid down by Vickers Armstrong, Barrow and launched in May 1939.
WTSS (RMS) Tynwald No. 165281 was a passenger vessel which served with the Isle of Man Steam Packet Company from 1937 until she was requisitioned for war service at the end of 1940. She was the fourth ship in the line's history to bear the name. Tynwald was sunk in November 1942 off the Algerian coast.
WSM U-20 or U-XX was the lead boat of the U-20 class of submarines or U-boats built for and operated by the Austro-Hungarian Navy during the First World War. The design for U-20 was based on that of the submarines of the Royal Danish Navy's Havmanden class, and was largely obsolete by the beginning of the war.
WUSS Western Chief (ID-3161) was a cargo ship of the United States Navy that served during World War I and its immediate aftermath. As SS Western Chief, she was sunk during World War II after being sold to the United Kingdom for use as a merchant ship.