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DEFCON
The defense readiness condition (DEFCON) is an alert state used by the United States Armed Forces. (DEFCON is not mentioned in the 2010 and newer document) The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. It prescribes five graduated levels of readiness (or states of alert) for the U.S. military. It increases in severity from DEFCON 5 (least severe) to DEFCON 1 (most severe) to match varying military situations, with DEFCON 1 signalling the outbreak of nuclear warfare. DEFCONs are a subsystem of a series of Alert Conditions, or LERTCONs, which also include Emergency Conditions (EMERGCONs). Definition The DEFCON level is controlled primarily by the U.S. president and the U.S. Secretary of Defense through the Chairman of the Joint Chiefs of Staff and the Combatant Commanders; each level defines specific security, activation and response scenarios for the personnel in question. Different branches of the U.S. Ar ...
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Cuban Missile Crisis
The Cuban Missile Crisis, also known as the October Crisis (of 1962) ( es, Crisis de Octubre) in Cuba, the Caribbean Crisis () in Russia, or the Missile Scare, was a 35-day (16 October – 20 November 1962) confrontation between the United States and the Soviet Union, which escalated into an international crisis when American deployments of missiles in Italy and Turkey were matched by Soviet deployments of similar ballistic missiles in Cuba. Despite the short time frame, the Cuban Missile Crisis remains a defining moment in national security and nuclear war preparation. The confrontation is often considered the closest the Cold War came to escalating into a full-scale nuclear war. In response to the presence of American Jupiter ballistic missiles in Italy and Turkey, the failed Bay of Pigs Invasion of 1961, and Soviet fears of a Cuban drift towards China, Soviet First Secretary Nikita Khrushchev agreed to Cuba's request to place nuclear missiles on the island to deter a ...
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EMERGCON
EMERGCON (emergency condition) is a state of readiness that is separate from DEFCON, or defense readiness condition used by the United States, in that it incorporates civilian measures in addition to the DEFCON military measures. Overview Generally, EMERGCONs are a state of readiness following an ICBM (intercontinental ballistic missile) attack. Other forces go to DEFCON 1 during EMERGCONs. There are two types of EMERGCONs: * Defense Emergency: A major hostile attack on United States and/or allied forces overseas, and/or an overt action made against the United States. This must be confirmed by a unified commander or higher authority. * Air Defense Emergency: A major hostile attack by aircraft or missiles seems probable, is imminent, or is taking place on the continental United States, Canada, or Greenland. This declaration is made by the Commander of the North American Aerospace Defense Command (NORAD). Although the United States military has gone into defense readiness at various ...
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Alert State
An alert state or state of alert is an indication of the state of readiness of the armed forces for military action or a state against natural disasters, terrorism or military attack. The term frequently used is "on high alert". Examples scales indicating alert state are the DEFCON levels of the US military, South Korea's "Jindogae" system, and the UK Threat Levels The United Kingdom Terror Threat Levels, often referred to as UK Threat Levels, are the alert states that have been in use since 1 August 2006 by the British government to warn of forms of terrorist activity. In September 2010 the threat level .... High alert states are synonymous with "red alert". See also References Military life Alert measurement systems {{mil-stub ...
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United States Army Europe
United States Army Europe and Africa (USAREUR-AF) is an Army Service Component Command (ASCC) /Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) and U.S. Africa Command (AFRICOM) area of responsibility. During the Cold War, it supervised ground formations primarily focused upon the Warsaw Pact to the east as part of NATO's Central Army Group. Since the revolutions of 1989, it has greatly reduced its size, dispatched U.S. forces to the Gulf Wars of 1990-91 and the 2003 invasion of Iraq, the Kosovo War, the War in Afghanistan (2001–2021) and increased security cooperation with other NATO land forces. In 2020, the Army announced that United States Army Africa would consolidate with U.S. Army Europe to form a new command, U.S. Army Europe and Africa. The two commands were consolidated on November 20, 2020. History World War II The European Theater of Operations, United States Army (ETOUSA) was a Theater of Ope ...
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Force Protection Condition
In United States military security parlance, force protection condition (FPCON for short) is a counter-terrorist threat system overseen by the United States Department of Defense directive, and describes the number of measures needed to be taken by security agencies in response to various levels of terrorist threats against military facilities, as opposed to DEFCON, which assesses the amount of military forces needed to be deployed in a situation with a certain likelihood of attack against the civilian population. The decision on what level of FPCON to implement is affected by the current threat of terrorism towards military facilities and personnel, the amount of security forces available, and current relationships between the United States and the world, which may affect the chances of an attack. FPCON was previously known as THREATCON, until it was renamed in June 2001 due to confusion with United States State Department system of threat assessment. Descriptions of FPCONs There ...
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Information Operations Condition
INFOCON (short for information operations condition) is a threat level system in the United States similar to that of FPCON. It is a defense system based primarily on the status of information systems and is a method used by the military to defend against a computer network attack. Description There are five levels of INFOCON, which recently changed to more closely correlate to DEFCON levels. They are: *INFOCON 5 describes a situation where there is no apparent hostile activity against computer networks. Operational performance of all information systems is monitored, and password systems are used as a layer of protection. *INFOCON 4 describes an increased risk of attack. Increased monitoring of all network activities is mandated, and all Department of Defense end users must make sure their systems are secure. Internet usage may be restricted to government sites only, and backing up files to removable media is ideal. *INFOCON 3 describes when a risk has been identified. Security re ...
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LERTCON
In United States military doctrine, LERTCON is an abbreviation of alert condition, and is a measure of the level of action and readiness to be taken in a given situation. LERTCON is used by US and Allied forces who are assigned to NATO. There are specific procedures laid out for responses to changes in LERTCON. LERTCON levels can be broken down into high-alert emergency condition levels (EMERGCONs) and the more common Defense Condition levels (DEFCONs). Levels *''LERTCON 5/4:'' Peacetime conditions *''LERTCON 3.5:'' Military vigilance *''LERTCON 3:'' Simple alert *''LERTCON 2:'' Reinforced alert *''LERTCON 1:'' General alert See also * FPCON * INFOCON * DEFCON * REDCON In the U.S. military, the term REDCON is short for Readiness Condition and is used to refer to a unit's readiness to respond to and engage in combat operations. There are five REDCON levels, as described below in this excerpt from Army Field Manu ... * Alert state References Alert measurement systems Mil ...
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Homeland Security Advisory System
In the United States, the Homeland Security Advisory System (HSAS) was a color-coded terrorism threat advisory scale created in March 2002 under the Bush Administration in response to the September 11 attacks. The different levels triggered specific actions by federal agencies and state and local governments, and they affected the level of security at some airports and other public facilities. It was often called the "terror alert level" by the U.S. media. The system was replaced on April 27, 2011, with a new system called the National Terrorism Advisory System. History The system was created by Homeland Security Presidential Directive 3 on March 11, 2002, in response to the September 11 attacks. It was meant to provide a "comprehensive and effective means to disseminate information regarding the risk of terrorist acts to federal, state, and local authorities and to the American people." It was unveiled March 12, 2002, by Tom Ridge, then the Assistant to the President for Home ...
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REDCON
In the U.S. military, the term REDCON is short for Readiness Condition and is used to refer to a unit's readiness to respond to and engage in combat operations. There are five REDCON levels, as described below in this excerpt from Army Field Manual 71–1. Overview * REDCON-1: Full alert; unit ready to move and fight. ** WMD alarms and hot loop equipment stowed; OPs pulled in. (A hot loop is a field telephone circuit between the subunits of a company.) ** All personnel alert and mounted on vehicles; weapons manned. ** Engines started. ** Company team is ready to move immediately. * REDCON-1.5 ** WMD alarms and hot loop equipment stowed; OPs pulled in. ** All personnel alert and mounted on vehicles; weapons manned. ** Company team is ready to move immediately. * REDCON-2: Full alert; unit ready to fight. ** Equipment stowed (except hot loop and WMD alarms). ** Precombat checks complete. ** All personnel alert and mounted in vehicles; weapons manned & charged, round in chamber, weap ...
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Nuclear Warfare
Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a long-lasting radiological result. A major nuclear exchange would likely have long-term effects, primarily from the fallout released, and could also lead to secondary effects, such as " nuclear winter", nuclear famine and societal collapse. A global thermonuclear war with Cold War-era stockpiles, or even with the current smaller stockpiles, may lead to various scenarios including the extinction of the human race. To date, the only use of nuclear weapons in armed conflict occurred in 1945 with the American atomic bombings of Hiroshima and Nagasaki. On August 6, 1945, a uranium gun-type device (code name "Little Boy") was detonated over the Japanese city of Hiroshi ...
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Dc All Five
DC, D.C., D/C, Dc, or dc may refer to: Places * Washington, D.C. (District of Columbia), the capital and the federal territory of the United States * Bogotá, Distrito Capital, the capital city of Colombia * Dubai City, as distinct from the Emirate of Dubai Science, technology and mathematics * DC or Direct current, electric current which flows in only one direction ** DC bias, a waveform's mean value ** Decicoulomb (dC), a unit of electric charge * Dené–Caucasian languages, of east Asia and western North America * New Zealand DC class locomotive * Methylphosphonyl dichloride, a chemical weapons precursor Biology and medicine * DC., standard author abbreviation for botanist Augustin Pyramus de Candolle (1778-1841) * Dendritic cell, a type of immune cell * Doctor of Chiropractic, a qualification in alternative medicine Computing * dc (computer program), a desktop calculator * DC coefficient a.k.a. constant component in discrete cosine transform * Data center, ...
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