Espionage, spying, or intelligence gathering is the act of obtaining secret or confidential information (intelligence). A person who commits espionage is called an espionage agent or spy. Any individual or spy ring, in the service of a government, company, criminal organization, or independent operation, can commit espionage. The practice is clandestine, as it is by definition unwelcome. In some circumstances, it may be a legal tool of law enforcement and in others, it may be illegal and punishable by law.
A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary military of any type. Military aircraft can be either combat or non-combat:
Secrecy is the practice of hiding information from certain individuals or groups who do not have the "need to know", perhaps while sharing it with other individuals. That which is kept hidden is known as the secret.
Human intelligence is intelligence gathered by means of human sources and interpersonal contact. It is distinct from more technical means of intelligence gathering such as signal interception. HUMINT can be conducted in a variety of ways, including via espionage, reconnaissance, interrogation, or witness interviews.
A frogman is someone who is trained in scuba diving or swimming underwater 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.
Plausible deniability is the ability of people, typically senior officials in a formal or informal chain of command, to deny knowledge of or responsibility for actions committed by or on behalf of members of their organizational hierarchy. They may do so because of a lack or absence of evidence that can confirm their participation, even if they were personally involved in or at least willfully ignorant of the actions. If illegal or otherwise disreputable and unpopular activities become public, high-ranking officials may deny any awareness of such acts to insulate themselves and shift the blame onto the agents who carried out the acts, as they are confident that their doubters will be unable to prove otherwise. The lack of evidence to the contrary ostensibly makes the denial plausible (credible), but sometimes, it makes any accusations only unactionable.
Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, collectively known as stealth technology. The F-117 Nighthawk was the first operational aircraft explicitly designed around stealth technology. Other examples of stealth aircraft include the B-2 Spirit, the B-21 Raider, the F-22 Raptor, the F-35 Lightning II, the Chengdu J-20, and the Sukhoi Su-57.
Aerial warfare is the use of military aircraft and other flying machines in warfare. Aerial warfare includes bombers attacking enemy installations or a concentration of enemy troops or strategic targets; fighter aircraft battling for control of airspace; attack aircraft engaging in close air support against ground targets; naval aviation flying against sea and nearby land targets; gliders, helicopters and other aircraft to carry airborne forces such as paratroopers; aerial refueling tankers to extend operation time or range; and military transport aircraft to move cargo and personnel.
A covert operation or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal the identity of the party responsible. Some of the covert operations are also clandestine operations which are performed in secret and meant to stay secret, though many are not.
Blowback is the unintended consequences and unwanted side-effects of a covert operation. To the civilians suffering the blowback of covert operations, the effect typically manifests itself as "random" acts of political violence without a discernible, direct cause; because the public—in whose name the intelligence agency acted—are unaware of the effected secret attacks that provoked revenge (counter-attack) against them.
The Directorate of Operations (DO), less formally called the Clandestine Service, is a component of the US Central Intelligence Agency. It was known as the Directorate of Plans from 1951 to 1973; as the Directorate of Operations from 1973 to 2005; and as the National Clandestine Service (NCS) from 2005 to 2015.
Russian military deception, sometimes known as maskirovka, is a military doctrine developed from the start of the 20th century. The doctrine covers a broad range of measures for military deception, from camouflage to denial and deception.
Proactive, Preemptive Operations Group is a proposed U.S. intelligence agency that would employ "black world" tactics.
Intelligence cycle management refers to the overall activity of guiding the intelligence cycle, which is a set of processes used to provide decision-useful information (intelligence) to leaders. The cycle consists of several processes, including planning and direction, collection, processing and exploitation, analysis and production, and dissemination and integration. The related field of counterintelligence is tasked with impeding the intelligence efforts of others. Intelligence organizations are not infallible but, when properly managed and tasked, can be among the most valuable tools of management and government.
Special reconnaissance (SR) is conducted by small units, such as a recon team, made up of highly trained military personnel, usually from special forces units and/or military intelligence organizations. Special reconnaissance teams operate behind enemy lines, avoiding direct combat and detection by the enemy. As a role, SR is distinct from commando operations, but both are often carried out by the same units. The SR role frequently includes covert direction of airstrikes and indirect fire, in areas deep behind enemy lines, placement of remotely monitored sensors, and preparations for other special forces. Like other special forces, SR units may also carry out direct action and unconventional warfare, including guerrilla operations.
The Clandestine HUMINT page adheres to the functions within the discipline, including espionage and active counterintelligence.
A clandestine cell system is a method for organizing a group of people, such as resistance fighters, sleeper agents, mobsters, or terrorists, to make it harder for the police or military to catch them. In a cell structure, each of the small groups of people in the cell know the identities of the people only in their own cell. Thus any cell member who is apprehended and interrogated will not likely know the identities of the higher-ranking individuals in the organization.
National governments deal in both intelligence and military special operations functions that either should be completely secret, or simply cannot be linked to the sponsor. It is a continuing and unsolved question for governments whether clandestine intelligence collection and covert action should be under the same agency. The arguments for doing so include having centralized functions for monitoring covert action and clandestine HUMINT and making sure they do not conflict, as well as avoiding duplication in common services such as cover identity support, counterespionage, and secret communications. The arguments against doing so suggest that the management of the two activities takes a quite different mindset and skills, in part because clandestine collection almost always is on a slower timeline than covert action.
The Defense Clandestine Service (DCS) is an arm of the Defense Intelligence Agency (DIA), which conducts clandestine espionage, intelligence gathering activities and classified operations around the world to provide insights and answer national-level defense objectives for senior U.S. policymakers and American military leaders. Staffed by civilian and military personnel, DCS is part of DIA's Directorate of Operations and works in conjunction with the Central Intelligence Agency's Directorate of Operations and the U.S. military's Joint Special Operations Command. DCS consists of about 500 clandestine operatives, which is roughly how many case officers the CIA maintained in the early 2000s prior to its expansion.
The Unmanned Carrier-Launched Airborne Surveillance and Strike (UCLASS) was a United States Navy program to develop an autonomous carrier-based unmanned combat aerial vehicle providing an unmanned intelligence and strike asset to the fleet. After debate over whether the UCLASS should primarily focus on stealthy bombing or scouting, the Pentagon instead changed the program entirely into the Carrier-Based Aerial-Refueling System (CBARS) to create a UAV for aerial refueling duties to extend the range of manned fighters, which lead to the Boeing MQ-25 Stingray.
