HMS Antelope was a British A-class destroyer, which was completed for the Royal Navy in 1930. Antelope served throughout the Second World War, taking part in the sinking of three enemy submarines and in Operation Torch, the Allied invasion of French North Africa.
HMS Seahorse was a first-batch S-class submarine built for the Royal Navy during the 1930s. Ordered in March 1931, she was laid down at Chatham Dockyard in September 1931 and launched on 15 November 1932.
HMS Swordfish (61S) was a first-batch S-class submarine built for the Royal Navy during the 1930s. Commissioned in 1932, she was given the pennant number 61S and was assigned to the 2nd Submarine Flotilla.
HMS Salmon was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1935, the boat fought in the Second World War. Salmon is one of twelve boats named in the song "Twelve Little S-Boats".
HMS Balfour was a Captain-class frigate of the Royal Navy which served during World War II. She was built as a TE (Buckley) type destroyer escort in the United States and delivered to the Royal Navy under the Lend-Lease arrangement.
HMS Active, the tenth Active, launched in 1929, was an A-class destroyer. She served in the Second World War, taking part in the sinking of four submarines. She was broken up in 1947.
HMS Starfish was a first-batch S-class submarine built for the Royal Navy during the 1930s. Completed in 1933, she participated in the Second World War.
HMS Spearfish was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1936, the boat participated in the Second World War. The submarine was one of the 12 boats named in the song "Twelve Little S-Boats". So far she has been the only ship of the Royal Navy to be named Spearfish.
HMS Sterlet was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1938, the boat fought in the Second World War. The submarine is one of the 12 boats named in the song Twelve Little S-Boats. Thus far she has been the only ship of the Royal Navy to be named Sterlet.
HMS Shark was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1934, the boat fought in the Second World War. Shark is one of twelve boats named in the song "Twelve Little S-Boats".
HMS Sunfish was a Royal Navy S-class submarine which was launched on 30 September 1936 and served in the Second World War. Sunfish is one of 12 boats named in the song Twelve Little S-Boats.
HMS Sealion was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1934, the boat fought in the Second World War.
HMS Seawolf was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed in 1936, the boat fought in the Second World War.
HMS L27 was a L-class submarine built for the Royal Navy during World War I. The boat was not completed before the end of the war and was one of three L-class boats to serve during World War II. She served as training boat before being broken up in 1944.
HMS Ursula was a U-class submarine, of the first group of that class constructed for the Royal Navy. The submarine entered service in 1938 and saw action during the Second World War in the North and Mediterranean Seas.
HMS Unrivalled (P45) was a U-class submarine built for the Royal Navy during World War II. The boat has been the only ship of the Royal Navy to ever bear the name Unrivalled. Completed in 1942, the boat spent most of the war in the Mediterranean. She sank a number of small merchant ships and naval auxiliaries, but major success eluded her during the war. Too small and slow for the post-war environment, Unrivalled was scrapped in 1946.
HMS L26 was a L-class submarine built for the Royal Navy during World War I. The boat was not completed before the end of the war and was one of three L-class boats to serve during World War II. She was sunk as a target in 1946.
HMS Escapade was an E-class destroyer built for the Royal Navy in the early 1930s. Although assigned to the Home Fleet upon completion in 1934, the ship was attached to the Mediterranean Fleet in 1935–1936 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. Escapade was assigned to convoy escort and anti-submarine patrol duties in the Western Approaches when World War II began in September 1939, but transferred back to the Home Fleet at the end of the year.
HMS Havelock was an H-class destroyer that had originally been ordered by the Brazilian Navy with the name Jutahy in the late 1930s, but was bought by the Royal Navy after the beginning of the Second World War in September 1939 and later renamed. She participated in the Norwegian Campaign in May 1940 and was assigned to convoy escort and anti-submarine patrols with the Western Approaches Command afterwards. The ship was briefly assigned to Force H in 1941, but her anti-aircraft armament was deemed too weak and she rejoined Western Approaches Command. Havelock became flotilla leader of Escort Group B-5 of the Mid-Ocean Escort Force in early 1942 and continued to escort convoys in the North Atlantic for the next two years. The ship was converted to an escort destroyer and sank one submarine during the war. After the end of the war, she escorted the ships carrying the Norwegian government in exile back to Norway and served as a target ship through mid-1946. Havelock was scrapped beginning in late 1946.
Arctic naval operations of World War II were the World War II naval operations that took place in the Arctic Ocean, and can be considered part of the Battle of the Atlantic and/or of the European Theatre of World War II.
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