Franz von HipperFranz Ritter von Hipper (13 September 1863 – 25 May 1932) was an admiral in the German Imperial Navy (Kaiserliche Marine). Franz von Hipper joined the German Navy in 1881 as an officer cadet. He commanded several torpedo boat units and served as watch officer aboard several warships, as well as Kaiser Wilhelm II's yacht . Hipper commanded several cruisers in the reconnaissance forces before being appointed commander of the I Scouting Group in October 1913.
Steam turbineA steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century.
Fleet in beingIn naval warfare, a "fleet in being" is a naval force that extends a controlling influence without ever leaving port. Were the fleet to leave port and face the enemy, it might lose in battle and no longer influence the enemy's actions, but while it remains safely in port, the enemy is forced to continually deploy forces to guard against it. A "fleet in being" can be part of a sea denial doctrine, but not one of sea control. The term was first used in 1690 when Lord Torrington, commander of the Royal Navy forces in the English Channel, found himself facing a stronger French fleet.
Royal Canadian NavyThe Royal Canadian Navy (RCN; Marine royale canadienne, MRC) is the naval force of Canada. The RCN is one of three environmental commands within the Canadian Armed Forces. As of 2023, the RCN operates 12 frigates, four attack submarines, 12 coastal defence vessels, eight patrol-class training vessels, two offshore patrol vessels, and several auxiliary vessels. The RCN consists of 8,400 Regular Force and 4,100 Primary Reserve sailors, supported by 3,800 civilians.
Blockade of GermanyThe Blockade of Germany, or the Blockade of Europe, occurred from 1914 to 1919. The prolonged naval blockade was conducted by the Allies during and after World War I in an effort to restrict the maritime supply of goods to the Central Powers, which included Germany, Austria-Hungary, and the Ottoman Empire. The blockade is considered one of the key elements in the eventual Allied victory in the war. The German Board of Public Health in December 1918 claimed that 763,000 German civilians had already died from starvation and disease, caused by the blockade.
Naval mineA naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel or a particular vessel type, akin to anti-infantry or anti-vehicle mines. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to protect friendly vessels and create "safe" zones.
MinelayerA minelayer is any warship, submarine or military aircraft deploying explosive mines. Since World War I the term "minelayer" refers specifically to a naval ship used for deploying naval mines. "Mine planting" was the term for installing controlled mines at predetermined positions in connection with coastal fortifications or harbor approaches that would be detonated by shore control when a ship was fixed as being within the mine's effective range. Before World War I, mine ships were termed mine planters generally.
Hugo von PohlHugo von Pohl (25 August 1855 – 23 February 1916) was a German admiral who served during the First World War. He joined the Navy in 1872 and served in various capacities, including with the new torpedo boats in the 1880s, and in the Reichsmarineamt (Imperial Navy Office) in the 1890s. He eventually reached the rank of Vizeadmiral and held the position of Chief of the Admiralty Staff in 1913. He commanded the German High Seas Fleet from February 1915 until January 1916.
Victoria CrossThe Victoria Cross (VC) is the highest and most prestigious decoration of the British honours system. It is awarded for valour "in the presence of the enemy" to members of the British Armed Forces and may be awarded posthumously. It was previously awarded by countries of the Commonwealth of Nations, most of which have established their own honours systems and no longer recommend British honours. It may be awarded to a person of any military rank in any service and to civilians under military command.
Zimmermann TelegramThe Zimmermann Telegram (or Zimmermann Note or Zimmerman Cable) was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico if the United States entered World War I against Germany. With Germany's aid, Mexico would recover Texas, Arizona, and New Mexico. The telegram was intercepted by British intelligence. Revelation of the contents enraged Americans, especially after German Foreign Secretary Arthur Zimmermann publicly admitted on March 3 that the telegram was genuine.
