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United States Army Intelligence And Security Command
The United States Army Intelligence and Security Command (INSCOM) is a direct reporting unit that conducts intelligence, security, and information operations for United States Army commanders, partners in the Intelligence Community, and national decision-makers. INSCOM is headquartered at Fort Belvoir, Virginia. INSCOM is an organization within both the Army and the National Security Agency, the United States's unified signals intelligence (SIGINT) organization. Within the NSA, INSCOM and its counterparts in the Navy, Air Force, Space Force, Coast Guard, and Marine Corps comprise what is known as the Central Security Service. INSCOM's budget has been estimated to be approximately $6 billion. As a direct reporting unit, INSCOM reports directly to the Chief of Staff of the Army, rather than higher echelons of command. Mission INSCOM collects intelligence information in all intelligence disciplines to provide unit commanders with intelligence for the battlefield and the focus o ...
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Structure Of The United States Army
The structure of the United States Army is complex, and can be interpreted in several different ways: active/reserve, operational/administrative, and branches/functional areas. From time to time the Department of the Army issues Department of the Army General Orders. In addition to base closures, unit citations, certain awards such as the Medal of Honor and Legion of Merit, they may concern the creation of JROTC units and structural changes to the Army. These are listed by year on the Army Publishing Directorate's website. This page aims to portray the current overall structure of the US Army. History Prior to 1903, members of the National Guard were considered state soldiers unless federalized by the President. Since the Militia Act of 1903, all National Guard soldiers have held dual status: as National Guardsmen under the authority of the governors of their states and as a reserve of the U.S. Army under the authority of the President. Since the adoption of the total forc ...
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SIGINT
Signals intelligence (SIGINT) is intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). Signals intelligence is a subset of intelligence collection management. As classified and sensitive information is usually encrypted, signals intelligence in turn involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signaling whom and in what quantity—is also used to integrate information again. History Origins Electronic interceptions appeared as early as 1900, during the Boer War of 1899–1902. The British Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s, and the British Army used some limited wireless signalling. The Boers captured some wireless sets and used them to make vital transmissi ...
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INSCOM HQ
The United States Army Intelligence and Security Command (INSCOM) is a direct reporting unit that conducts intelligence, security, and information operations for United States Army commanders, partners in the Intelligence Community, and national decision-makers. INSCOM is headquartered at Fort Belvoir, Virginia. INSCOM is an organization within both the Army and the National Security Agency, the United States's unified signals intelligence (SIGINT) organization. Within the NSA, INSCOM and its counterparts in the Navy, Air Force, Space Force, Coast Guard, and Marine Corps comprise what is known as the Central Security Service. INSCOM's budget has been estimated to be approximately $6 billion. As a direct reporting unit, INSCOM reports directly to the Chief of Staff of the Army, rather than higher echelons of command. Mission INSCOM collects intelligence information in all intelligence disciplines to provide unit commanders with intelligence for the battlefield and the focus o ...
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Information Warfare
Information warfare (IW) (as different from cyber warfare that attacks computers, software, and command control systems) is a concept involving the battlespace use and management of information and communication technology (ICT) in pursuit of a competitive advantage over an opponent. Information warfare is the manipulation of information trusted by a target without the target's awareness so that the target will make decisions against their interest but in the interest of the one conducting information warfare. As a result, it is not clear when information warfare begins, ends, and how strong or destructive it is. Information warfare may involve the collection of tactical information, assurance(s) that one's information is valid, spreading of propaganda or disinformation to demoralize or manipulate the enemy and the public, undermining the quality of the opposing force's information and denial of information-collection opportunities to opposing forces. Information warfare is cl ...
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Electronic Warfare
Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponent the advantage of—and ensure friendly unimpeded access to—the EM spectrum. EW can be applied from air, sea, land, and/or space by crewed and uncrewed systems, and can target communication, radar, or other military and civilian assets. The electromagnetic environment Military operations are executed in an information environment increasingly complicated by the electromagnetic spectrum. The electromagnetic spectrum portion of the information environment is referred to as the electromagnetic environment (EME). The recognized need for military forces to have unimpeded access to and use of the electromagnetic environment creates vulnerabilities and opportunities for electronic warfare in support of military operations. Within the informat ...
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Force Protection
Force protection (FP) refers to the concept of protecting military personnel, family members, civilians, facilities, equipment and operations from threats or hazards in order to preserve operational effectiveness and contribute to mission success. It is used as a doctrine by members of NATO. The concept of force protection was initially created after the Beirut barrack bombings in Lebanon in 1983. With its Cold War focus toward potential adversaries employing large conventional military forces at the time (e.g., the Soviet Union, etc.), the U.S. military had become complacent and predictable with regard to asymmetric attacks by state and non-state actors employing terrorist and guerilla methodologies . As a result, during what were ostensibly peacekeeping operations by a U.S. Marine Corps landing force ashore in Lebanon in 1983, it allowed two civilian trucks to breach the perimeter of the Marines' containment area and detonate their load of explosives as suicide vehicles adjac ...
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Counterintelligence
Counterintelligence is an activity aimed at protecting an agency's intelligence program from an opposition's intelligence service. It includes gathering information and conducting activities to prevent espionage, sabotage, assassinations or other intelligence activities conducted by, for, or on behalf of foreign powers, organizations or persons. Many countries will have multiple organisations focusing on a different aspect of counterintelligence, such as domestic, international, and counter-terrorism. Some states will formalise it as part of the police structure, such as the United States' Federal Bureau of Investigation (FBI). Others will establish independent bodies, such as the United Kingdom's MI5, others have both intelligence and counterintelligence grouped under the same agency, like the Canadian Security Intelligence Service (CSIS). History Modern tactics of espionage and dedicated government intelligence agencies developed over the course of the late-19th century. ...
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Echelon Above Corps
Echelons above corps (EAC), in US and NATO practice, refer to higher headquarters, of purpose-built organization, which involve a greater number of troops than would be in an army corps. They may be standing organizations with a regional responsibility, or may be established for a particular operational purpose. While EAC most commonly refer to ground combat forces, they may refer to joint commands. They may also be administrative headquarters with responsibility for preparing combat forces. While there were a significant number of EAC in World War II, with increasing power of smaller organizations, it may not be required to have a ground force of the size of: :*Field army, made up of two or more corps plus units under the direct control of the army commander :*Army group, composed of two or more field armies plus units subordinated to the army group commander :*Theater, composed of all land, sea, and air forces in a geographic area Even in World War II, while the Western Allies ...
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Chief Of Staff Of The United States Army
The chief of staff of the Army (CSA) is a statutory position in the United States Army held by a general officer. As the highest-ranking officer assigned to serve in the Department of the Army, the chief is the principal military advisor and a deputy to the secretary of the Army. In a separate capacity, the CSA is a member of the Joint Chiefs of Staff () and, thereby, a military advisor to the National Security Council, the secretary of defense, and the president of the United States. The CSA is typically the highest-ranking officer on active duty in the U.S. Army unless the chairman or the vice chairman of the Joint Chiefs of Staff are Army officers. The chief of staff of the Army is an administrative position based in the Pentagon. While the CSA does not have operational command authority over Army forces proper (which is within the purview of the Combatant Commanders who report to the Secretary of Defense), the CSA does exercise supervision of army units and organizations ...
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Central Security Service
The Central Security Service (CSS) is a combat support agency of the United States Department of Defense which was established in 1972 to integrate the National Security Agency (NSA) and the Service Cryptologic Components (SCC) of the United States Armed Forces in the field of signals intelligence, cryptology, and information assurance at the tactical level.Central Security Service insignia
NSA/CSS website
In 2002, the CSS had approximately 25,000 uniformed members.
FAS.org
It is part of the

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Marine Corps Intelligence
Marine Corps Intelligence is an element of the United States Intelligence Community. The Director of Intelligence supervises the Intelligence Department of HQMC and is responsible for policy, plans, programming, budgets, and staff supervision of Intelligence and supporting activities within the U.S. Marine Corps as well as supervising the Marine Corps Intelligence Activity (MCIA). The Department supports the Commandant of the Marine Corps (CMC) in his role as a member of the Joint Chiefs of Staff (JCS), represents the service in Joint and Intelligence Community matters, and exercises supervision over the MCIA. The Department has Service Staff responsibility for Geospatial Intelligence (GEOINT), Advanced Geospatial Intelligence (AGI), Signals Intelligence (SIGINT), Human Intelligence (HUMINT), Counterintelligence (CI), and ensures there is a single synchronized strategy for the development of the Marine Corps Intelligence, Surveillance and Reconnaissance (ISR) Enterprise. The MC ...
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Coast Guard Intelligence
Coast Guard Intelligence (CGI) is the military intelligence branch of the United States Coast Guard, and a component of the Central Security Service of the United States Department of Defense. The United States Coast Guard is a military, multi-mission, maritime, uniformed service of the United States Department of Homeland Security and one of the United States's six armed services. Its core roles are to protect the public, the environment, and U.S. economic and security interests in any maritime region in which those interests may be at risk, including international waters and the U.S.'s coasts, ports, and inland waterways. The Coast Guard provides unique benefits to the nation because of its distinctive blend of military, humanitarian, and civilian law enforcement capabilities. To assist in accomplishing the many diverse missions of the Coast Guard, senior leadership and operational commanders rely on Coast Guard Intelligence. Coast Guard intelligence came into existence in 1915 b ...
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