counterterrorismn.
/ˌkaʊntəˈtɛrərɪz(ə)m/, U.S. /ˌkaʊn(t)ərˈtɛrəˌrɪz(ə)m/ Political or military actions or measures intended to combat, prevent, or deter terrorism, sometimes (in early use) with the implication that the methods utilized resemble those of the terrorists.
ΚΠ
1864 Times 18 Aug. 6/4 Unless the Poles, by a system of counter-terrorism, had been able to deter would-be spies and traitors, their government could not have lasted a week.
1925 Atlanta Constit. 14 Sept. 4/6 An observer writing in the Manchester Guardian in regard to the terrorism and counter-terrorism in Bulgaria sums up her conclusions with the words [etc.].
1941 Syracuse (N.Y.) Herald Jrnl. 23 Sept. 16/2 Terrorism may work for a while but it breeds a counter-terrorism.
1961 D. E. Ashford Polit. Change in Morocco iii. 80 The administration was increasingly involved in aiding and abetting French counter-terrorism from mid 1954.
2004 R. Dew & P. Pape No Backup xxvi. 201 Their work includes such duties as preemployment security background investigations, counterintelligence, and counterterrorism.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).
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