The Battle of the River Plate was fought in the South Atlantic on 13 December 1939 as the first naval battle of the Second World War. The Kriegsmarine heavy cruiser Admiral Graf Spee, commanded by Captain Hans Langsdorff, engaged a Royal Navy squadron, commanded by Commodore Henry Harwood, comprising the light cruisers HMS Ajax, HMS Achilles and the heavy cruiser HMS Exeter.
HMNZS Achilles was a Leander-class light cruiser, the second of five in the class. She served in the Royal New Zealand Navy in the Second World War. She was launched in 1931 for the Royal Navy, loaned to New Zealand in 1936 and transferred to the new Royal New Zealand Navy in 1941. She became famous for her part in the Battle of the River Plate, alongside HMS Ajax and HMS Exeter and notable for being the first Royal Navy cruiser to have fire control radar, with the installation of the New Zealand-made SS1 fire-control radar in June 1940.
The Battle of the River Plate is a 1956 British war film in Technicolor and VistaVision by the writer-director-producer team of Michael Powell and Emeric Pressburger. The film stars John Gregson, Anthony Quayle, Bernard Lee and Peter Finch. It was distributed worldwide by Rank Film Distributors Ltd.
HMS Canopus was a pre-dreadnought battleship of the British Royal Navy and the lead ship of the Canopus class. Intended for service in Asia, Canopus and her sister ships were smaller and faster than the preceding Majestic-class battleships, but retained the same battery of four 12-inch (305 mm) guns. She also carried thinner armour, but incorporated new Krupp steel, which was more effective than the Harvey armour used in the Majestics. Canopus was laid down in January 1897, launched in October that year, and commissioned into the fleet in December 1899.
The heavy cruiser was a type of cruiser, a naval warship designed for long range and high speed, armed generally with naval guns of roughly 203 mm (8 inches) in calibre, whose design parameters were dictated by the Washington Naval Treaty of 1922 and the London Naval Treaty of 1930. The heavy cruiser is part of a lineage of ship design from 1915 through the early 1950s, although the term "heavy cruiser" only came into formal use in 1930. The heavy cruiser's immediate precursors were the light cruiser designs of the 1900s and 1910s, rather than the armoured cruisers of the years before 1905. When the armoured cruiser was supplanted by the battlecruiser, an intermediate ship type between this and the light cruiser was found to be needed—one larger and more powerful than the light cruisers of a potential enemy but not as large and expensive as the battlecruiser so as to be built in sufficient numbers to protect merchant ships and serve in a number of combat theatres.
Haguro (羽黒) was a Myōkō-class heavy cruiser of the Imperial Japanese Navy, named after Mount Haguro in Yamagata Prefecture. Commissioned in 1929, Haguro saw significant service during World War II, participating in nine naval engagements. She was sunk in 1945 during a fight with Royal Navy destroyers, one of the last major Japanese warships to be sunk in open waters during World War II.
The Fiji-class cruisers were a class of eleven light cruisers of the Royal Navy that saw extensive service throughout the Second World War. Each ship of the class was named after a Crown colony or other constituent territory of the British Commonwealth and Empire. The class was also known as the Colony class, or Crown Colony class. Developed as more compact versions of the preceding Town-class cruisers, the last three were built to a slightly modified design and were sometimes also called the Ceylon class.
The Renown class consisted of two battlecruisers built during the First World War for the Royal Navy. They were originally laid down as improved versions of the Revenge-class battleships, but their construction was suspended on the outbreak of war on the grounds they would not be ready in a timely manner. Admiral Lord Fisher, upon becoming First Sea Lord, gained approval to restart their construction as battlecruisers that could be built and enter service quickly. The Director of Naval Construction (DNC), Eustace Tennyson-D'Eyncourt, quickly produced an entirely new design to meet Admiral Lord Fisher's requirements and the builders agreed to deliver the ships in 15 months. They did not quite meet that ambitious goal, but they were delivered a few months after the Battle of Jutland in 1916. They were the world's fastest capital ships upon their commissioning.
HMS Renown was the lead ship of her class of battlecruisers of the Royal Navy built during the First World War. She was originally laid down as an improved version of the Revenge-class battleships. Her construction was suspended on the outbreak of war on the grounds she would not be ready in a timely manner. Admiral Lord Fisher, upon becoming First Sea Lord, gained approval to restart her construction as a battlecruiser that could be built and enter service quickly. The Director of Naval Construction (DNC), Eustace Tennyson-D'Eyncourt, quickly produced an entirely new design to meet Admiral Lord Fisher's requirements and the builders agreed to deliver the ships in 15 months. They did not quite meet that ambitious goal, but the ship was delivered a few months after the Battle of Jutland in 1916. Renown, and her sister HMS Repulse, were the world's fastest capital ships upon completion.
The County class was a class of heavy cruisers built for the Royal Navy in the years between the First and Second World Wars. They were the first post-war cruisers constructed for the Royal Navy and were designed within the limits of the Washington Naval Treaty of 1922. Such ships, with a limit of 10,000 tons, standard displacement and 8-inch calibre main guns may be referred to as "treaty cruisers".
The Atlanta-class cruisers were eight United States Navy light cruisers which were designed as fast scout cruisers or flotilla leaders but which proved to be effective anti-aircraft cruisers during World War II. They were also known as the Atlanta-Oakland class. The Atlanta class originally had 16 x 5-inch (127 mm)/38 caliber guns in eight two-gun turrets, arranged with three superfiring turrets forward, three more superfiring aft and two waist mounts, one port and one starboard, giving the first four Atlanta-class cruisers the heaviest anti-aircraft armament of any cruiser of World War II. The last four ships of the class, starting with Oakland, had a slightly revised armament with a reduced main gun battery - the waist turrets being deleted - as they were further optimized for anti-aircraft fire in light of war experience.
The Courageous class consisted of three battlecruisers known as "large light cruisers" built for the Royal Navy during the First World War. The class was nominally designed to support the Baltic Project, a plan by Admiral of the Fleet Lord Fisher that was intended to land troops on the German Baltic Coast. Ships of this class were fast but very lightly armoured, with only a few heavy guns. They were given a shallow draught, in part to allow them to operate in the shallow waters of the Baltic but also reflecting experience gained earlier in the war. To maximize their speed, the Courageous-class battlecruisers were the first capital ships of the Royal Navy to use geared steam turbines and small-tube boilers.
HMS Invincible was the lead ship of her class of three battlecruisers built for the Royal Navy during the first decade of the twentieth century and the first battlecruiser to be built by any country in the world. During the First World War, she participated in the Battle of Heligoland Bight in a minor role, as she was the oldest and slowest of the British battlecruisers present. During the Battle of the Falkland Islands, Invincible and her sister ship Inflexible sank the armoured cruisers Scharnhorst and Gneisenau almost without loss to themselves, despite numerous hits by the German ships.
The Brooklyn-class cruiser was a class of nine light cruisers built for the United States Navy between 1935 and 1938. Armed with five triple 6-inch (152 mm) gun turrets, they mounted more main battery guns than any other standard US cruiser. The Brooklyn-class ships were all commissioned between 1937 and 1939, in the time between the start of the Second Sino-Japanese War and before the invasion of Poland. They served extensively in both the Pacific and Atlantic theaters during World War II.
HMS Monmouth was the name ship of her class of 10 armoured cruisers built for the Royal Navy in the first decade of the 20th century. The ships were also known as the County Cruisers.
HMS Kent, pennant number 54, was a County-class heavy cruiser built for the Royal Navy in the late 1920s. She was the lead ship of the Kent subclass. After completion the ship was sent to the China Station where she remained until the beginning of the Second World War, aside from a major refit in 1937–38. Kent hunted the German pocket battleship Admiral Graf Spee in the East Indies in late 1939 and then was reassigned to troop convoy escort duties in the Indian Ocean in early 1940. She was transferred to the Mediterranean in mid-1940, but was torpedoed shortly after arriving. The ship was under repair for a year and was then assigned to Home Fleet where she escorted convoys to and from North Russia for the next several years. In mid-1944 Kent escorted British aircraft carriers as their aircraft made attacks on German shipping and airfields in Norway. A few months later she was flagship of a force that intercepted a German convoy in Norwegian waters and sank two freighters and five escorts. The ship was paid off in early 1945 and placed in reserve until she was used as a target. Kent was sold for scrap in 1948.
HMS Exeter was the second and last York-class heavy cruiser built for the Royal Navy during the late 1920s. Aside from a temporary deployment with the Mediterranean Fleet during the Abyssinia Crisis of 1935–36, she spent the bulk of the 1930s assigned to the Atlantic Fleet or the North America and West Indies Station. When World War II began in September 1939, the cruiser was assigned to patrol South American waters against German commerce raiders. Exeter was one of three British cruisers that fought the German heavy cruiser Admiral Graf Spee, later that year in the Battle of the River Plate. She was severely damaged during the battle, and she was in the shipyard for over a year.
HMS Cumberland was a County-class heavy cruiser of the Royal Navy that saw action during the Second World War.
The BL 8 inch gun Mark VIII was the main battery gun used on the Royal Navy's County-class cruisers, in compliance with the Washington Naval Treaty of 1922. This treaty allowed ships of not more than 10,000 tons standard displacement and with guns no larger than 8 inches (203 mm) to be excluded from total tonnage limitations on a nation's capital ships. The 10,000 ton limit was a major factor in design decisions such as turrets and gun mountings. A similar gun formed the main battery of Spanish Canarias-class cruisers. In 1930, the Royal Navy adopted the BL 6 inch Mk XXIII naval gun as the standard cruiser main battery in preference to this 8-inch gun.
Admiral Graf Spee was a Deutschland-class "Panzerschiff", nicknamed a "pocket battleship" by the British, which served with the Kriegsmarine of Nazi Germany during World War II. The vessel was named after World War I Admiral Maximilian von Spee, commander of the East Asia Squadron who fought the battles of Coronel and the Falkland Islands, where he was killed in action. She was laid down at the Reichsmarinewerft shipyard in Wilhelmshaven in October 1932 and completed by January 1936. The ship was nominally under the 10,000 long tons (10,000 t) limitation on warship size imposed by the Treaty of Versailles, though with a full load displacement of 16,020 long tons (16,280 t), she significantly exceeded it. Armed with six 28 cm (11 in) guns in two triple gun turrets, Admiral Graf Spee and her sisters were designed to outgun any cruiser fast enough to catch them. Their top speed of 28 knots left only the few battlecruisers in the Anglo-French navies fast enough and powerful enough to sink them.
Royal Navy 