Conflict dossier · #100 of 120
Mexican Drug War (2006–present)
21st Century & Ongoing Tier 2
Mexican Drug War (2006–present)
Overview
- Belligerents: Government of Mexico (armed forces, National Guard — created 2019, police) vs. drug-trafficking organizations — the Sinaloa Cartel (and its post-2024 warring factions: Los Chapitos vs. La Mayiza), Cártel de Jalisco Nueva Generación (CJNG), and others — plus inter-cartel wars.
- Dates: December 2006–present (conventional start: President Felipe Calderón's military deployment). Ongoing as of the September 2026 observation window.
- Theater: Mexico — Sinaloa, Jalisco, Guanajuato, Michoacán, Tamaulipas, Guerrero, Baja California, Sonora, Colima; US border dimension.
Causes
- Analysts attribute the war to the Calderón government's 2006 decision to deploy the military against cartels, fragmenting large organizations into warring splinters; the kingpin strategy's "cockroach effect"; US drug demand and southbound arms flows; and institutional corruption and impunity (Mexico's homicide impunity rate is routinely estimated above 90% by NGOs — contested by officials).
- The Mexican government frames it as a necessary fight against organized crime; critics argue militarization escalated violence without reducing trafficking.
Course
Homicides rose sharply from 2007 and have exceeded 30,000/year for the past five years. The 2019 creation of the National Guard and AMLO's "hugs, not bullets" policy did not end the violence. Under President Claudia Sheinbaum (from Oct 2024), the government hardened its approach under US pressure: officials claimed homicides fell 40% between Sept 2024 and Dec 2025, to 17.5 per 100,000 in 2025 — the lowest rate since 2016 (government claim; analysts urge caution, noting disappearances and other crimes rose — AP, Jan 2026). Major 2024–26 developments: the July 2024 arrest of "El Mayo" Zambada fractured the Sinaloa Cartel; the resulting Chapitos–La Mayiza war in Sinaloa killed 2,973 in that state alone between Sept 2024 and Mar 2026 (Noroeste newspaper via Mazatlán Post). On 22 Feb 2026, Mexican forces captured and killed CJNG leader Nemesio Oseguera Cervantes ("El Mencho") in an operation leaving at least 72 dead (Harvard ReVista review); retaliatory blockades and arson spread across 20+ states, with 25 National Guard soldiers killed in Jalisco (Soufan Center, Feb 2026). The 2026 FIFA World Cup (Mexico matches from June 2026) heightened security concerns in Jalisco.
Casualties
- Total 2006–present: commonly cited 350,000–450,000+ homicides (Mexican government SESNSP data cumulated); the Vatican News-cited government report (2021) referenced "a quarter of a million slain" at that point. No single consolidated "drug war" toll exists because many homicides are not classified by motive → range reported, UNVERIFIED as exact.
- Disappeared: 85,006 officially registered as of 2021 (Deputy Secretary Alejandro Encinas); the registry has since grown past 100,000+ per later government updates (not verified in this research pass).
- 2025: ~52 homicides/day by Dec 2025 per government (claimed); analysts dispute completeness.
- Sinaloa intra-cartel war: 2,973 dead Sept 2024–Mar 2026 (Noroeste).
Outcome & legacy (as of September 2026)
Unresolved. Mexico remains the Western Hemisphere's deadliest criminal conflict; the state's 2025–26 claims of progress are contested by analysts pointing to disappearances and cartel territorial control. The El Mencho killing is the most significant kingpin removal since El Chapo's extradition, with uncertain succession effects.
Tracker pulse
- UCDP does not code the drug war as a state-based armed conflict (it falls below the organized-actor/government-dyad criteria in most years — a long-standing methodological debate); ACLED does track cartel violence extensively in Mexico.
- ICG covers Mexico's criminal conflict periodically; HIIK has coded it as a violent crisis.
- Debate: whether the drug war qualifies as an "armed conflict"/"war" at all (UCDP exclusion vs. ACLED/ICG inclusion); and the reliability of the government's 2025–26 homicide decline claims.
Validation tier
Tier 2 — ACLED event data, Mexican government SESNSP homicide statistics, ICG/HIIK coverage, major-press reporting; UCDP does not list it, so Tier 2 rather than Tier 1.
UNVERIFIED points
- Exact total death toll attributable to the drug war (350,000–450,000+ range; motive classification unavailable).
- Government claims of a 40% homicide decline (Sept 2024–Dec 2025) — disputed by analysts citing disappearances.
- El Mencho operation death toll (72+ per press; official breakdowns partial).
Sources
- Soufan Center IntelBrief (El Mencho killing, 25 Feb 2026): https://thesoufancenter.org/intelbrief-2026-february-25/
- Harvard ReVista review (El Mencho operation, 72 dead): https://revista.drclas.harvard.edu/a-review-of-a-brief-history-of-violence-in-mexico/
- AP via SRN News (homicide decline claims, Jan 2026): https://srnnews.com/mexico-boasts-sharp-decline-in-homicides-but-analysts-urge-caution/
- Mazatlán Post (Sinaloa toll 2,973; 2025 homicide-city rankings): https://themazatlanpost.com/2026/03/20/mexico-tops-2025-homicide-rankings-with-17-cities-u-s-records-three/
- Vatican News (85,006 disappeared; quarter-million slain, 2021): http://www.vaticannews.cn/en/world/news/2021-04/mexico-drug-war-85000-victims-governement-report.print.html
Images
Sources
- Soufan Center IntelBrief (El Mencho killing, 25 Feb 2026
- Harvard ReVista review (El Mencho operation, 72 dead
- AP via SRN News (homicide decline claims, Jan 2026
- Mazatlán Post (Sinaloa toll 2,973; 2025 homicide-city rankings
- Vatican News (85,006 disappeared; quarter-million slain, 2021