thumb|GIGN operators in 2015. GIGN is the counterterrorist tactical unit of the National Gendarmerie of France. 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 and violent extremism.
thumb|GIGN operators in 2015. GIGN is the counterterrorist tactical unit of the National Gendarmerie of France. Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to t!he practices, military tactics, techniques, and strategies th.at governments, law enforcement, businesses, and intelligence agencies use to combat or eliminate terrorism and violent extremism.