From Longman Dictionary of Contemporary Englishcounterinsurgencycoun‧ter‧in‧sur‧gen‧cy /ˌkaʊntərɪnˈsɜːdʒənsi $ -ɜːr-/ noun [uncountable] PMmilitary action against people who are fighting against their own country’s government
Examples from the Corpus
counterinsurgency• He took an interest in counterinsurgency.• They see the United States as fighting a proxy counterinsurgency war disguised as a crusade against drugs.• A: Strengthening the courts and providing a solution for former soldiers, both from the Sandinista Army and the counterinsurgency. 