The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, and over six thousand smaller islands. They have a total area of 315,159 km2 (121,684 sq mi) and a combined population of almost 72 million, and include two sovereign states, the Republic of Ireland, and the United Kingdom of Great Britain and Northern Ireland. The Channel Islands, off the north coast of France, are normally taken to be part of the British Isles, even though geographically they do not form part of the archipelago. Under the UK Interpretation Act 1978, the Channel Islands are clarified as forming part of the British Islands, not to be confused with the British Isles.
The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busiest shipping area in the world.
The Kriegsmarine was the navy of Nazi Germany from 1935 to 1945. It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war Reichsmarine (1919–1935) of the Weimar Republic. The Kriegsmarine was one of three official branches, along with the Heer and the Luftwaffe, of the Wehrmacht, the German armed forces from 1935 to 1945.
The Strait of Gibraltar is a narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates Europe from Africa. The two continents are separated by 13 kilometres of ocean at the Strait's narrowest point between Punta de Tarifa in Spain and Point Cires in Morocco. Ferries cross between the two continents every day in as little as 35 minutes. The Strait's depth ranges between 300 and 900 metres.
A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas.
The Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a major part of the naval history of World War II. At its core was the Allied naval blockade of Germany, announced the day after the declaration of war, and Germany's subsequent counter-blockade. The campaign peaked from mid-1940 through to the end of 1943.
The GIUK gap is an area in the northern Atlantic Ocean that forms a naval choke point. Its name is an acronym for Greenland, Iceland, and the United Kingdom, the gap being the two stretches of open ocean among these three landmasses. It separates the Norwegian Sea and the North Sea from the open Atlantic Ocean. The term is typically used in relation to military topics. The area has for some nations been considered strategically important since the beginning of the 20th century.
Commerce raiding is a form of naval warfare used to destroy or disrupt logistics of the enemy on the open sea by attacking its merchant shipping, rather than engaging its combatants or enforcing a blockade against them.
CP Ships was a large Canadian shipping company established in the 19th century. From the late 1880s until after World War II, the company was Canada's largest operator of Atlantic and Pacific steamships. Many immigrants travelled on CP ships from Europe to Canada. In 1914 the sinking of the Canadian Pacific steamship RMS Empress of Ireland just before World War I became largest maritime disaster in Canadian history. The company provided Canadian Merchant Navy vessels in World Wars I and II. Twelve vessels were lost due to enemy action in World War II, including the RMS Empress of Britain, which was the largest ship ever sunk by a German U-boat.
The American Theater was a theater of operations during World War II including all continental American territory, and extending 200 miles (320 km) into the ocean.
Operation Berlin was a raid conducted by the two German Scharnhorst-class battleships against Allied shipping in the North Atlantic between 22 January and 22 March 1941. It formed part of the Battle of the Atlantic during World War II. The Scharnhorst and Gneisenau sailed from Germany, operated across the North Atlantic, sank or captured 22 Allied merchant vessels, and finished their mission by docking in occupied France. The British military sought to locate and attack the German battleships, but failed to damage them.
Operation Nordseetour was a raid conducted between 30 November and 27 December 1940 by the German heavy cruiser Admiral Hipper. It was part of the Battle of the Atlantic of World War II, with the ship seeking to attack Allied convoys in the North Atlantic. Admiral Hipper left Germany on 30 November 1940 and entered the Atlantic after evading British patrols. She had difficulty locating any convoys and was plagued by engine problems and bad weather. While returning to Brest in German-occupied France, Admiral Hipper encountered Convoy WS 5A on the night of 24 December. A torpedo attack that night did not inflict any damage and Admiral Hipper was driven off by the convoy's escorts when she attacked on the next morning. Two British transports and a heavy cruiser were damaged. The German cruiser sank a merchant ship later on 25 December, and arrived in Brest on 27 December.
Commander-in-Chief, Western Approaches was the commander of a major operational command of the Royal Navy during World War II. The admiral commanding, and his forces, sometimes informally known as 'Western Approaches Command,' were responsible for the safety of British shipping in the Western Approaches.
Newfoundland Escort Force (NEF) was a Second World War naval command created on 20 May 1941 as part of the Allied convoy system in the Battle of the Atlantic. Created in response to the movement of German U-boats into the western Atlantic Ocean, the Newfoundland Escort Force (NEF) was instituted to cover the convoy escort gap that existed between the local convoy escort in Canada and the United Kingdom. The Royal Canadian Navy provided the majority of naval vessels to the NEF along with its commander Commodore Leonard W. Murray, with units from the British, Norwegian, Polish, French and Dutch navies also assigned. The NEF was reconstituted as part of the Mid-Ocean Escort Force in 1942.
Sea Frontiers were several, now disestablished, commands of the United States Navy as areas of defense against enemy vessels, especially submarines, along the U.S. coasts. They existed from 1 July 1941 until in some cases the 1970s. Sea Frontiers generally started at the shore of the United States and extended outwards into the sea for a nominal distance of two hundred miles.
Napoleon's planned invasion of the United Kingdom at the start of the War of the Third Coalition, although never carried out, was a major influence on British naval strategy and the fortification of the coast of southeast England. In 1796 the French had already tried to invade Ireland in order to destabilise the United Kingdom or as a stepping-stone to Great Britain. The first French Army of England had gathered on the Channel coast in 1798, but an invasion of England was sidelined by Napoleon's concentration on campaigns in Egypt and against Austria, and shelved in 1802 by the Peace of Amiens. Building on planning for mooted invasions under France's Ancien Régime in 1744, 1759 and 1779, preparations began again in earnest soon after the outbreak of war in 1803, and were finally called off in 1805, before the Battle of Trafalgar.
At the beginning of World War II, Iceland was a sovereign kingdom in personal union with Denmark, with King Christian X as head of state. Iceland officially remained neutral throughout World War II. However, the British invaded Iceland on 10 May 1940. On 7 July 1941, the defence of Iceland was transferred from Britain to the United States, which was still a neutral country until five months later. On 17 June 1944, Iceland dissolved its union with Denmark and the Danish monarchy and declared itself a republic, which it remains to this day.
HMS Ferret was a shore establishment and naval base of the Royal Navy during the Second World War, located in Derry. It was given a ship's name as a stone frigate.
Marine weather forecasting is the process by which mariners and meteorological organizations attempt to forecast future weather conditions over the Earth's oceans. Mariners have had rules of thumb regarding the navigation around tropical cyclones for many years, dividing a storm into halves and sailing through the normally weaker and more navigable half of their circulation. Marine weather forecasts by various weather organizations can be traced back to the sinking of the Royal Charter in 1859 and the RMS Titanic in 1912.
Allied Command Channel (ACCHAN) was one of three major North Atlantic Treaty Organization (NATO) commands from 1952 to 1994. Commander-in-Chief Channel was a Major NATO Commander (MNC).
