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Subterranean Warfare
Subterranean warfare or underground warfare is warfare conducted underneath the ground surface. It is predominantly conducted in tunnels and underground cavities, both natural (such as caves) and artificial (such as sewerage and subway systems). Underground military facilities play a key role in many nations, and there are more than 10,000 underground military facilities worldwide. As such, underground warfare is a nearly inevitable component of modern conflicts. Combatants often go underground to counteract overmatch such as that faced when taking on a superpower. Underground environments generally protect from surface attacks and Aerial warfare, aerial attacks such as airstrikes and Barrage (artillery), artillery barrages, and are also generally dark, enclosed, and well-protected, making them difficult for even experienced forces to effectively fight in. History Subterranean warfare was occasionally carried out during World War II. Examples are the defense of the Adzhimushk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Request For Information
A request for information (RFI) is a common business process whose purpose is to collect written information about the capabilities of various suppliers. Normally it follows a format that can be used for comparative purposes. An RFI is primarily used to gather information to help make a decision on what steps to take next. RFIs are therefore rarely the final stage and are instead often used in combination with request for proposal (RFP), request for tender (RFT), and request for quotation (RFQ). In addition to gathering basic information, an RFI is often used as a solicitation sent to a broad base of potential suppliers for the purpose of conditioning suppliers' minds, developing strategy, building a database, and preparing for an RFP, RFT, or RFQ. An RFI may be ''open'', where information is publicly gathered from anyone interested who wants to provide a submission, or ''closed'', where parties are privately approached to provide information. The ubiquitous availability of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trench Warfare
Trench warfare is a type of land warfare using occupied lines largely comprising Trench#Military engineering, military trenches, in which combatants are well-protected from the enemy's small arms fire and are substantially sheltered from artillery. It became archetypically associated with World War I (1914–1918), when the Race to the Sea rapidly expanded trench use on the Western Front (World War I), Western Front starting in September 1914.. Trench warfare proliferated when a Weapons of World War I, revolution in firepower was not matched by similar advances in mobility (military), mobility, resulting in a grueling form of warfare in which the defender held the advantage. On the Western Front in 1914–1918, both sides constructed elaborate trench, underground, and dugout (shelter), dugout systems opposing each other along a front (military), front, protected from assault by barbed wire. The area between opposing trench lines (known as "no man's land") was fully exposed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Engineering
Military engineering is loosely defined as the art, science, and practice of designing and building military works and maintaining lines of military transport and military communications. Military engineers are also responsible for logistics behind military tactics. Modern military engineering differs from civil engineering. In the 20th and 21st centuries, military engineering also includes CBRN defense and other engineering disciplines such as mechanical and electrical engineering techniques. According to NATO, "military engineering is that engineer activity undertaken, regardless of component or service, to shape the physical operating environment. Military engineering incorporates support to maneuver and to the force as a whole, including military engineering functions such as engineer support to force protection, counter improvised explosive devices, environmental protection, engineer intelligence and military search. Military engineering does not encompass the activities u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal United Services Institute
The Royal United Services Institute (RUSI, Rusi) is a defence and security think tank with its headquarters in London, United Kingdom. It was founded in 1831 by the Arthur Wellesley, 1st Duke of Wellington, Duke of Wellington, Arthur Wellesley. The institution was registered as Royal United Service Institute for Defence and Security Studies and formerly known as the Royal United Services Institute for Defence Studies. The current chair of RUSI is David Lidington, Sir David Lidington and its director-general is Rachel Ellehuus. History RUSI was founded in 1831, making it the oldest defence and security think tank in the world, at the initiative of the Arthur Wellesley, 1st Duke of Wellington, Duke of Wellington. Its original objective was to study naval and military science. The Duke of Wellington spearheaded the establishment of RUSI in a letter to ''Colbourn's United Service Journal'' arguing that "a United Service Museum" should be formed, managed entirely by naval and mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreign Policy
Foreign policy, also known as external policy, is the set of strategies and actions a State (polity), state employs in its interactions with other states, unions, and international entities. It encompasses a wide range of objectives, including defense and security, economic benefits, and humanitarian assistance. The formulation of foreign policy is influenced by various factors such as domestic considerations, the behavior of other states, and geopolitical strategies. Historically, the practice of foreign policy has evolved from managing short-term crises to addressing long-term international relations, with diplomatic corps playing a crucial role in its development. The objectives of foreign policy are diverse and interconnected, contributing to a comprehensive approach for each state. Defense and security are often primary goals, with states forming military alliances and employing soft power to combat threats. Economic interests, including trade agreements and foreign aid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunker Buster
A bunker buster is a type of munition that is designed to penetrate hardened targets or targets buried deep underground, such as military bunkers. Armor piercing shells Germany Röchling shells were bunker-busting artillery shells, developed by the German engineer August Coenders, based on the theory of increasing sectional density to improve penetration. They were tested in 1942 and 1943 against the Belgian Fort d'Aubin-Neufchâteau. Aircraft delivered bombs World War II Germany In World War II the Luftwaffe developed a series of unguided rocket-propelled armor-piercing bombs for use against shipping and fortifications. United Kingdom In World War II, the British designer Barnes Wallis, already famous for inventing the bouncing bomb, designed two bombs that would become the conceptual predecessors of modern bunker busters: the five tonne Tallboy and the ten tonne Grand Slam. These were "Earthquake" bombs—a concept he had first proposed in 1939. The designs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponge Bombs
A sponge bomb is a specialized device designed to seal the end of a tunnel. Small enough that it can be set by a single person, it is a non-explosive, chemical bomb that releases a burst of expanding foam that quickly hardens. Development The sponge bomb was developed by the Israel Defense Forces (IDF) to address the use of tunnels by Hamas in Gaza. Design Housed in a plastic container, the bomb has a metal partition that separates two liquid reagents. Once the partition is removed, the liquids mix and react, causing them to rapidly expand and then solidify, creating a physical barrier blocking the tunnel. The device is either set at its target by an individual or thrown. In 2021, testing of sponge bombs was reportedly conducted by IDF in simulated tunnels. During initial testing of these bombs, the liquid emulsion was found to be hazardous to work with when mishandled – some Israeli soldiers lost their eyesight. Historical perspective This is not the first time that sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamas
The Islamic Resistance Movement, abbreviated Hamas (the Arabic acronym from ), is a Palestinian nationalist Sunni Islam, Sunni Islamism, Islamist political organisation with a military wing, the Qassam Brigades. It has Gaza Strip under Hamas, governed the Israeli-occupied territories, Israeli-occupied Gaza Strip since 2007. The Hamas movement was founded by Palestinian Islamic scholar Ahmed Yassin in 1987, after the outbreak of the First Intifada against the Israeli occupied territories, Israeli occupation. It emerged from his 1973 Mujama al-Islamiya Islamic charity affiliated with the Muslim Brotherhood. In the 2006 2006 Palestinian legislative election, Palestinian legislative election, Hamas secured a majority in the Palestinian Legislative Council by campaigning on promises of a corruption-free government and advocating for resistance as a means to liberate Palestine from Israeli occupation. In the Battle of Gaza (2007), Battle of Gaza, Hamas seized control of the Gaza S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel Defense Forces
The Israel Defense Forces (IDF; , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and the Israeli Navy. It is the sole military wing of the Israeli security forces, Israeli security apparatus. The IDF is headed by the Chief of the General Staff (Israel), chief of the general staff, who is subordinate to the Ministry of Defense (Israel), defense minister. On the orders of first prime minister David Ben-Gurion, the IDF was formed on 26 May 1948 and began to operate as a Conscription in Israel, conscript military, drawing its initial recruits from the already-existing paramilitaries of the Yishuv—namely Haganah, the Irgun, and Lehi (militant group), Lehi. It was formed shortly after the Israeli Declaration of Independence and has participated in List of wars involving Israel, every armed conflict involving Israel. In the wak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Media
Atlantic Media, Inc. is an American print and online media company owned by David G. Bradley and based in the Watergate complex in Washington, D.C. It held numerous publications and businesses. Since 2020, it holds a minority stake in ''The Atlantic'', a print and online publication that also holds themed events, and offers business intelligence and consulting services through its National Journal Group subsidiary. Founded in 1997 when Bradley purchased the National Journal Group, the company expanded for three decades by launching several new publications and acquiring others. It began to slim down in 2017 when Bradley sold a majority stake in ''The Atlantic'' to Emerson Collective, and continued by selling ''Quartz'' in 2018, ''CityLab'' in 2019, and the Government Executive Media Group subsidiary with its four publications and websites in 2020. History 20th century Bradley began his foray into publishing in 1997 by purchasing the National Journal Group, which published '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urban Warfare
Urban warfare is warfare in urban areas such as towns and cities. Urban combat differs from combat in the open at both Military operation, operational and the Military tactics, tactical levels. Complicating factors in urban warfare include the presence of civilians and the complexity of the urban terrain. Urban combat operations may be conducted to capitalize on strategic or tactical advantages associated with the possession or the control of a particular urban area or to deny these advantages to the enemy. It is considered to be arguably the most difficult form of warfare. Fighting in urban areas negates the advantages that one side may have over the other in armor, heavy artillery, or air support. Ambushes laid down by small groups of soldiers with handheld anti-tank weapons can destroy entire columns of modern armor (as in the Battle of Grozny (1994–95), First Battle of Grozny), while artillery and air support can be severely reduced if the "superior" party wants to limit ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
