Private security industry

thumb|upright=1.2|Legion of Frontiersmen, Edmonton Command, 1915 – a nationalist paramilitary group not officially affiliated with the [[Canadian Army]]

person employed to protect assets

thumb|GIGN operators in 2015. GIGN is the counterterrorist tactical unit of the [[National Gendarmerie of France.]] Counterterrorism, also spelled counter-terrorism and sometimes referred to as anti-terrorism, encompasses the laws, policies, and operational measures used to prevent, deter, and respond to terrorism. These efforts involve a range of tactics and strategies employed by governments, law-enforcement agencies, intelligence services and, in some contexts, private-sector organisations.