Counterinsurgency
political and military actions by a state to defeat an insurgency or a resistance movement and to address its root causes

Counterinsurgency (COIN, or NATO spelling counter-insurgency) is "the totality of actions aimed at defeating irregular forces". The Oxford English Dictionary defines counterinsurgency as any "military or political action taken against the activities of guerrillas or revolutionaries" and can be considered war by a state against a non-state adversary. Insurgency and counterinsurgency campaigns have been waged since ancient history. Western thought on fighting 'small wars' gained interest during initial periods of European colonisation, while modern thinking on counterinsurgency was developed during decolonization.
During insurgency and counterinsurgency, the distinction between civilians and combatants is often blurred. Counterinsurgency may involve attempting to win the hearts and minds of populations supporting the insurgency. Alternatively, it may be waged in an attempt to intimidate or eliminate civilian populations suspected of loyalty to the insurgency through indiscriminate violence.
Models
Counterinsurgency is normally conducted as a combination of conventional military operations and other means, such as demoralization in the form of propaganda, Psy-ops, and assassinations. Counter-insurgency operations include many different facets: military, paramilitary, political, economic, psychological, and civic actions taken to defeat insurgency.
To understand counterinsurgency, one must understand insurgency to comprehend the dynamics of revolutionary warfare.
This brief starts where responsible research should: with the source description of “Counterinsurgency” as political and military actions by a state to defeat an insurgency or a resistance movement and to address its root causes. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the history & society register because the source frames it as political and military actions by a state to defeat an insurgency or a resistance movement and to address its root causes. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q760037. The Library of Congress control number is sh85033442. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Later summaries often reconcile disputed chronology or motive more neatly than the contemporary record permits. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
- Institutional context
- Locating named record creators
Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “Counterinsurgency”, its source revision and the description used here.
- Expand the search: follow Counterinsurgency primary sources, Counterinsurgency archive and Counterinsurgency research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Counterinsurgency”?
- Who created the surviving record, and for what administrative purpose?
- Which voices are present, absent or mediated by the institution?
Search terms from this dossier
This entry incorporates text from “Counterinsurgency” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.