Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any 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.
The United States Army Special Operations Command (Airborne) (USASOC ( YOO-sə-sok)) is the command charged with overseeing the various special operations forces of the United States Army. Headquartered at Fort Liberty, North Carolina, it is the largest component of the United States Special Operations Command. It is an Army Service Component Command. Its mission is to organize, train, educate, man, equip, fund, administer, mobilize, deploy and sustain Army special operations forces to successfully conduct worldwide special operations.
James Arthur Williams was a United States Army lieutenant general. Williams served as Director of the Defense Intelligence Agency in the 1980s. He was a 1987 inductee of the Military Intelligence Hall of Fame and was the chairman of the board of directors for the National Military Intelligence Association.
King Abdullah II Special Forces Group, commonly known as the JORSOF are strategic-level special forces of the Royal Jordanian Army under the Jordanian Armed Forces. Founded on April 15, 1963, on the orders of the late King Hussein, its primary roles include reconnaissance, counter-terrorism, search and evacuation, intelligence gathering combat, and the protection of key sites. The Special Forces Group are also charged with carrying out precision strikes against critical enemy targets. The unit is equipped and trained to be able to operate behind enemy lines for long periods without any logistical support, and is considered some of the best in the Middle East.
The 519th Military Intelligence Battalion is a unit of the United States Army.
The 95th Civil Affairs Brigade (Airborne) is a Special Operations civil affairs brigade of the United States Army based at Fort Liberty, North Carolina. The concept for a civil affairs brigade had been under consideration for years, but was finally approved as a result of the 2006 Quadrennial Defense Review. The 95th Civil Affairs Brigade makes up a significant portion of the four percent of civil affairs soldiers in the active component.
The 313th Military Intelligence Battalion was an active duty Airborne Military Intelligence Battalion of the United States Army.
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.
The United States Marine Corps' Anti-Terrorism Battalion was a specialized infantry battalion. The battalion was disbanded in 2013.
The counter-terrorism page primarily deals with special police or military organizations that carry out arrest or direct combat with terrorists. This page deals with the other aspects of counter-terrorism:
The 319th Military Intelligence Battalion is a military intelligence battalion in the United States Army and is part of the 525th Military Intelligence Brigade (Expeditionary).
United States Army Counterintelligence (ACI) is the component of United States Army Military Intelligence which conducts counterintelligence activities to detect, identify, assess, counter, exploit and/or neutralize adversarial, foreign intelligence services, international terrorist organizations, and insider threats to the United States Army and U.S. Department of Defense (DoD).
The 513th Military Intelligence Brigade is a unit of the United States Army and subordinate to the U.S. Army Intelligence and Security Command. Its mission is to provide "tailored, multi-disciplined intelligence and intelligence capabilities in support of ARCENT and other Commands, to defeat adversaries, promote regional stability, support partners and allies, and protect US interests." The 513th is headquartered at Fort Eisenhower, Georgia.
The 470th Military Intelligence Brigade is a unit of the United States Army and subordinate to the U.S. Army Intelligence and Security Command. Its mission is to provide tailored, multi-disciplined intelligence and counter-intelligence in support of United States Army South (ARSOUTH) and United States Southern Command (USSOUTHCOM). The 470th is headquartered at Fort Sam Houston, Texas with subordinate battalions located in Texas and Florida. Elements of the 470th have participated in Operation Just Cause and have deployed in support of Operation Iraqi Freedom and Operation Enduring Freedom.
The 109th Expeditionary Military Intelligence Battalion is an inactive military Intelligence battalion of the United States Army. Last headquartered at Joint Base Lewis–McChord, Washington, it was part of the 201st Expeditionary Military Intelligence Brigade under I Corps prior to its inactivation 12 May 2021. The Battalion's last commander was LTC Raven B. Stein.
The 525th Expeditionary Military Intelligence Brigade (Expeditionary) is a unit of the United States Army specializing in the acquisition and analysis of information with potential military value. On 28 October 2014, the unit was reflagged from the "525th Battlefield Surveillance Brigade" to an expeditionary military intelligence brigade, the first of its kind.
The 207th Military Intelligence Brigade (Theater) (207th MIB (T)) is a military intelligence brigade of the United States Army Intelligence and Security Command that conducts intelligence collection and exploitation in support of U.S. Army Africa (USARAF) and U.S. Africa Command (AFRICOM) in order to set the intelligence architecture for the theater, disrupt transnational and trans-regional threats, and promote regional stability in Africa while building and maintaining intelligence readiness. The 207th MIB is the first theater intelligence brigade dedicated solely to Africa.
The 308th Military Intelligence Battalion is an active duty Military Intelligence (MI) Battalion of the United States Army assigned to the 902nd MI Group, an Intelligence & Security Command (INSCOM) subordinate.
The 310th Military Intelligence Battalion is an active duty Military Intelligence (MI) Battalion of the United States Army assigned to the 902nd MI Group. The 310th MI Battalion conducts proactive technical counterintelligence operations and support, counterespionage investigations and analysis and production to detect, identify, assess, counter, neutralize or exploit foreign intelligence entities, international terrorist organizations and insider threats.
The 203rd Military Intelligence Battalion (Technical Intelligence) is the sole technical intelligence (TECHINT) collection and foreign material exploitation unit of the United States Department of Defense and a battalion in the United States Army Reserve. The 203rd obtains and exploits captured enemy materials, maintains one of the premier test and evaluation inventories of adversary equipment and weaponry in the US military, and supports specialized tasking including counter-terrorism, special reconnaissance, and direct action missions. Much of the units work is conducted in close collaboration with the National Ground Intelligence Center. The battalion's intelligence products provide TECHINT support to INSCOM, the Defense Intelligence Enterprise, the broader US Intelligence Community (IC), the Five Eyes, NATO, and foreign allies and partners.
Military intelligence 
US Army Intelligence and Security Command 
