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Underwater Warfare
Underwater warfare, also known as undersea warfare or subsurface warfare, is naval warfare involving underwater vehicle or combat operations conducted underwater. It is one of the four operational areas of naval warfare, the others being surface warfare, aerial warfare, and information warfare. Underwater warfare includes: *Actions by submarines actions, and anti-submarine warfare, i.e. warfare between submarines, other submarines and surface ships; combat airplanes and helicopters may also be engaged when launching special dive-bombs and torpedo-missiles against submarines; *Underwater special operations, considering: ** Military diving sabotage against ships and ports. ** Anti-frogman techniques. **Reconnaissance tasks. History In the 20th century underwater warfare was dominated by the submarine. They first came to prevalence during the First World War, when German U-boats attacked and sank many allied vessels, such as the sinking of the ''Lusitania'' in 1915. A simila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ROKS Lee Jongmoo
ROKS ''Lee Jongmoo'' (SS-066) is the fifth ship of the of the Republic of Korea Navy, and was the fourth submarine to serve with the navy. She is one of ''Jang Bogo''-class submarines to be built in South Korea. Development At the end of the 1980s the South Korean navy started to improve its overall capability and began to operate more advanced vessels. South Korea purchased its first submarines, German U-209 class in its Type 1200 subvariant, ordered as the ''Jang Bogo'' class. These boats are generally similar to Turkey's six ''Atilay''-class submarines, with German sensors and weapons. The first order placed late in 1987 covered three boats, one to be completed in Germany and the other two in South Korea from German-supplied kits. There followed by two additional three-boat orders placed in October 1989 and January 1994 for boats of South Korean construction. The boats were commissioned from 1993 to 2001. The older boats were upgraded, it is believed that the modernization i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabotage
Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization (warfare), demoralization, destabilization, divide and rule, division, social disruption, disruption, or destruction. One who engages in sabotage is a ''saboteur''. Saboteurs typically try to conceal their identities because of the consequences of their actions and to avoid invoking legal and organizational requirements for addressing sabotage. Etymology The English word derives from the French word , meaning to "bungle, botch, wreck or sabotage"; it was originally used to refer to labour disputes, in which workers wearing wooden shoes called interrupted production through different means. A false etymology, popular but incorrect account of the origin of the term's present meaning is the story that poor workers in the Belgian city of Liège would throw a wooden into the machines to disrupt production. One of the first appearance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Military Special Forces Units
This is a list of military special forces units, also known as special forces, special operations forces (SOF), currently active with countries around the world, that are specially organized, trained and equipped to conduct special operations. These are distinct from special-purpose infantry units, such as the Royal Marine Commandos, found on the list of commando units, and also paratrooper units found on the list of paratrooper forces. Definitions NATO currently defines "special operations" as: Military activities conducted by specially designated, organized, trained, and equipped forces, manned with selected personnel, using unconventional tactics, techniques, and modes of employment. In 2001, as part of efforts to create a framework for consultation and cooperation between NATO-Russia Council, NATO and Russia, the ''NATO-RUSSIA Glossary of Contemporary Political and Military Terms'' further defined special operations and special operations forces: special operations mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogman
A frogman is someone who is trained in scuba diving or swimming underwater. The term often applies more to professional rather than recreational divers, especially those working in a tactical capacity that includes military, and in some European countries, police work. Such personnel are also known by the more formal names of combat diver, combatant diver, or combat swimmer. The word ''frogman'' first arose in the stage name the "Fearless Frogman" of Paul Boyton in the 1870s and later was claimed by John Spence, an enlisted member of the U.S. Navy and member of the OSS Maritime Unit, to have been applied to him while he was training in a green waterproof suit. The term ''frogman'' is occasionally used to refer to a civilian scuba diver, such as in a police diving role. In the United Kingdom, police divers have often been called "police frogmen". Some countries' tactical diver organizations include a translation of the word ''frogman'' in their official names, e.g., Denmark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commando
A commando is a combatant, or operative of an elite light infantry or special operations force, specially trained for carrying out raids and operating in small teams behind enemy lines. Originally, "a commando" was a type of combat unit, as opposed to an individual in that unit. In other languages, ''commando'' and ''kommando'' denote a "Command (military formation), command", including the sense of a military or an elite special operations unit. In the militaries and governments of most countries, commandos are distinctive in that they specialize in unconventional assault on high-value targets. In English, to distinguish between an individual commando and a commando unit, the unit is occasionally capitalized. In China, the term "commando unit" (突击队) does not necessarily refer to a commando unit, but refers to special forces and Police tactical unit, police tactical units in general. Such use includes the Special Operations Brigade (PLA Navy Marine Corps), Jiaolong Command ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Underwater Vehicle
Unmanned underwater vehicles (UUV), also known as underwater drones, are submersible vehicles that can operate underwater without a human occupant. These vehicles may be divided into two categories: remotely operated underwater vehicles (ROUVs) and autonomous underwater vehicles (AUVs). ROUVs are remotely controlled by a human operator. AUVs are automated and operate independently of direct human input. Classifications Remotely operated underwater vehicle Remotely operated underwater vehicle, Remotely Operated Underwater Vehicles (ROUVs) is a subclass of UUVs with the primary purpose of replacing humans for underwater tasks due to the difficult underwater conditions. ROUVs are designed to perform educational or industrial missions. They are manually controlled by an operator to perform tasks that include surveillance and patrolling. The structure of ROUVs disqualify it from being able to operate autonomously. In addition to a camera, actuators, and sensors, ROUVs often incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific War
The Pacific War, sometimes called the Asia–Pacific War or the Pacific Theatre, was the Theater (warfare), theatre of World War II fought between the Empire of Japan and the Allies of World War II, Allies in East Asia, East and Southeast Asia, the Pacific Ocean, Pacific and Indian Oceans, and Oceania. It was geographically the largest theatre of the war, including the Pacific Ocean theater of World War II, Pacific Ocean theatre, the South West Pacific theater of World War II, South West Pacific theatre, the Second Sino-Japanese War, and the brief Soviet–Japanese War, and included some of the Largest naval battle in history, largest naval battles in history. War between Japan and the Republic of China (1912–1949), Republic of China had begun in 1937, with hostilities dating back to Japanese invasion of Manchuria, Japan's invasion of Manchuria in 1931, but the Pacific War is more widely accepted to have started in 1941, when the United States and United Kingdom entered the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMS Lusitania
RMS ''Lusitania'' was a United Kingdom, British ocean liner launched by the Cunard Line in 1906. The Royal Mail Ship, the world's largest passenger ship until the completion of her sister three months later, in 1907 regained for Britain the Blue Riband appellation for the fastest Atlantic crossing, which had been held by German ships for a decade. During World War I, ''Lusitania'' was listed as Armed merchantmen, armed merchant cruiser (AMC) and carried both British munitions and US citizens on her 202nd trans-Atlantic crossing, when on 7 May 1915 at 14:10 off the Old Head of Kinsale, Ireland, the German submarine SM U-20 (Germany), ''U-20'' fired a single torpedo, triggering a second explosion and the sinking about 18 minutes later. Only 6 of several dozen lifeboats and rafts were successfully lowered, and of 1,960 persons on board, 767 survived and 1,193 perished.The official figures give 1,195 lost out of 1,959, excluding three stowaways who also were lost. The figures he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-boat
U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the German term refers to any submarine. Austro-Hungarian Navy submarines were also known as U-boats. U-boats are most known for their unrestricted submarine warfare in both world wars, trying to Commerce raiding, disrupt merchant traffic towards the UK and force the UK out of the war. In World War I, Germany intermittently waged unrestricted submarine warfare against the United Kingdom, UK: a first campaign in 1915 was abandoned after strong protests from the US but in 1917 the Germans, facing deadlock on the continent, saw no other option than to resume the campaign in February 1917. The renewed campaign failed to achieve its goal mainly because of the introduction of Convoys in World War I, convoys. Instead the campaign ensured final defeat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
