Explore topic-wise fullforms in Military and Defence

INFO: Full form for DCI is Director, Central Intelligence in Military and Defence category
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INFO: Full form for DCI is Director of Corporate Information in Military and Defence category
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INFO: Full form for DCI is Defense Critical Infrastructure in Military and Defence category
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INFO: Full form for DCI is Dual Channel Interchange in Military and Defence category
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INFO: Full form for PCI is Product Configuration Identification in Military and Defence category
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INFO: Full form for RCI is Resource Consultants, Incorporated in Military and Defence category
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INFO: Full form for RCI is Remove, Check, and Install in Military and Defence category
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The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes, specializing in a discipline known as signals intelligence (SIGINT). The NSA is also tasked with the protection of U.S. communications networks and information systems. The NSA relies on a variety of measures to accomplish its mission, the majority of which are clandestine. The existence of the NSA was not revealed until 1975.

Originating as a unit to decipher coded communications in World War II, it was officially formed as the NSA by President Harry S. Truman in 1952. Between then and the end of the Cold War, it became the largest of the U.S. intelligence organizations in terms of personnel and budget, but information available as of 2013 indicates that the CIA pulled ahead in this regard, with a budget of $14.7 billion. The NSA currently conducts worldwide mass data collection and has been known to physically bug electronic systems as one method to this end. The NSA is also alleged to have been behind such attack software as Stuxnet, which severely damaged Iran's nuclear program. The NSA, alongside the Central Intelligence Agency (CIA), maintains a physical presence in many countries across the globe; the CIA/NSA joint Special Collection Service (a highly classified intelligence team) inserts eavesdropping devices in high value targets (such as presidential palaces or embassies). SCS collection tactics allegedly encompass "close surveillance, burglary, wiretapping, [and] breaking and entering".

Unlike the CIA and the Defense Intelligence Agency (DIA), both of which specialize primarily in foreign human espionage, the NSA does not publicly conduct human-source intelligence gathering. The NSA is entrusted with providing assistance to, and the coordination of, SIGINT elements for other government organizations – which are prevented by law from engaging in such activities on their own. As part of these responsibilities, the agency has a co-located organization called the Central Security Service (CSS), which facilitates cooperation between the NSA and other U.S. defense cryptanalysis components. To further ensure streamlined communication between the signals intelligence community divisions, the NSA Director simultaneously serves as the Commander of the United States Cyber Command and as Chief of the Central Security Service.

The NSA's actions have been a matter of political controversy on several occasions, including its spying on anti–Vietnam War leaders and the agency's participation in economic espionage. In 2013, the NSA had many of its secret surveillance programs revealed to the public by Edward Snowden, a former NSA contractor. According to the leaked documents, the NSA intercepts and stores the communications of over a billion people worldwide, including United States citizens. The documents also revealed the NSA tracks hundreds of millions of people's movements using cellphones' metadata. Internationally, research has pointed to the NSA's ability to surveil the domestic Internet traffic of foreign countries through "boomerang routing".

INFO: Full form for NIS is Non-imaging Sensor in Military and Defence category
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INFO: Full form for NIS is National Military Command System Information System in Military and Defence category
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The United States Naval Criminal Investigative Service (NCIS) is the primary law enforcement agency of the U.S. Department of the Navy. Its primary function is to investigate criminal activities involving the U.S. Navy and U.S. Marine Corps, though its broad mandate includes national security, counterintelligence, counter-terrorism, cyber warfare, and the protection of U.S. naval assets worldwide. NCIS is the successor organization to the former Naval Investigative Service (NIS), which was established by the Office of Naval Intelligence after the Second World War.

The vast majority of NCIS personnel are civilian, with half being special agents. NCIS agents are armed federal law enforcement investigators, who frequently coordinate with other U.S. government agencies and have a presence in more than 41 countries and on U.S. Navy vessels. NCIS special agents are supported by analysts and other experts skilled in disciplines such as forensics, surveillance, surveillance countermeasures, computer investigations, physical security, and polygraph examinations.

INFO: Full form for NTI is Not Turned In in Military and Defence category
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The Nuclear Threat Initiative (NTI) is a nonpartisan, nonprofit organization founded in 2001 by former U.S. Senator Sam Nunn and philanthropist Ted Turner in the United States, which works to prevent catastrophic attacks and accidents with weapons of mass destruction and disruption – especially nuclear, biological, radiological, chemical, and cybersecurity.

INFO: Full form for IRS is Interface Requirements Specification in Military and Defence category
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INFO: Full form for IRS is Information Reporting System in Military and Defence category
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INFO: Full form for IRS is In Range Shooting in Military and Defence category
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INFO: Full form for IRS is Information and Reconnaissance Ship in Military and Defence category
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INFO: Full form for SCORES is Scenario-oriented Recurring Evaluation System in Military and Defence category
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INFO: Full form for CBN is Chemical Biological Nuclear in Military and Defence category
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