Counterterrorism

Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and intelligence agencies use to combat or eliminate terrorism.^[1]

If an act of terrorism occurs as part of a broader insurgency (and insurgency is included in the definition of terrorism) then counterterrorism may additionally employ counterinsurgency measures. The United States Armed Forces uses the term "foreign internal defense" for programs that support other countries' attempts to suppress insurgency, lawlessness, or subversion, or to reduce the conditions under which threats to national security may develop.^[2]^[3]^[4]

^ Stigall, Dan E.; Miller, Chris; Donnatucci, Lauren (October 7, 2019). "The 2018 National Strategy for Counterterrorism: A Synoptic Overview". American University National Security Law Brief. SSRN 3466967.
^ "Introduction to Foreign Internal Defense" (PDF). U.S. Air Force Doctrine. February 1, 2020.
^ "Introduction to Foreign Internal Defense" (PDF). Curtis E. Lemay Center for Doctrine Development and Education. Archived from the original (PDF) on January 24, 2017. Retrieved July 10, 2019.
^ "Differences Between Foreign Internal Defense (FID) and Counter Insurgency (COIN)". SOFREP.

[1] Stigall, Dan E.; Miller, Chris; Donnatucci, Lauren (October 7, 2019). "The 2018 National Strategy for Counterterrorism: A Synoptic Overview". American University National Security Law Brief. SSRN 3466967.

[2] "Introduction to Foreign Internal Defense" (PDF). U.S. Air Force Doctrine. February 1, 2020.

[3] "Introduction to Foreign Internal Defense" (PDF). Curtis E. Lemay Center for Doctrine Development and Education. Archived from the original (PDF) on January 24, 2017. Retrieved July 10, 2019.

[4] "Differences Between Foreign Internal Defense (FID) and Counter Insurgency (COIN)". SOFREP.

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