Conflict dossier · #102 of 120
Boko Haram insurgency (2009–present)
21st Century & Ongoing Tier 1
Boko Haram insurgency (2009–present)
Overview
- Belligerents: Nigeria (Armed Forces, Multinational Joint Task Force — MNJTF), Cameroon, Chad, Niger vs. Jama'atu Ahlis Sunna Lidda'awati wal-Jihad ("Boko Haram") — split since 2016 into JAS (Shekau faction, until his 2021 death) and ISWAP (Islamic State West Africa Province, ISIS affiliate); plus the Bakura subgroup and Al-Qaeda-linked elements. Intra-jihadist fighting is a major 2021–26 feature.
- Dates: July 2009–present (the group's founding dates to 2002; the insurgency conventionally starts with the July 2009 uprising). Ongoing as of the September 2026 observation window.
- Theater: Northeastern Nigeria (Borno, Yobe, Adamawa), northern Cameroon, southeastern Niger, western Chad — the Lake Chad Basin.
Causes
- Analysts attribute the group's rise to northern Nigeria's poverty and governance failures, the 2009 extrajudicial killing of founder Mohammed Yusuf (which survivors and scholars cite as the radicalizing event), and later ISIS/AQ ideological and material links.
- The Nigerian government frames it as terrorism requiring military defeat; critics argue heavy-handed military tactics and civilian harm have aided recruitment.
Course
The 2009 uprising was crushed; Abubakar Shekau rebuilt the group into a mass-casualty insurgency. The April 2014 Chibok schoolgirl kidnapping (276 girls) drew global attention. At its 2014–15 peak the group held territory the size of Belgium; the 2015 MNJTF offensive and Buhari-era operations pushed it back. The 2016 split weakened it; Shekau's death in May 2021 (during an ISWAP assault) triggered consolidation under ISWAP with continued JAS/Bakura resistance. Intra-jihadist clashes have killed hundreds (e.g., the late-2025 Lake Chad fighting reported at 150–200 deaths — affiliation of the dead unclear in press accounts). As of 2025–26 the insurgency persists at reduced territorial scale but with steady attacks: mass abductions (school kidnappings continuing into 2025), raids on military bases (e.g., the 2025 Marte/Wulgo base attacks claimed by jihadists), and cross-border strikes into Cameroon and Chad.
Casualties
- Total 2009–present: commonly cited ~35,000–50,000+ deaths from violence (UNDP's 2021 assessment estimated ~350,000 total deaths when including indirect effects of the conflict — hunger, disease, lack of services — a figure widely cited but methodologically modeled) → both figures attributed; exact direct toll UNVERIFIED.
- Displacement: ~2.5–3 million IDPs/refugees in the Lake Chad Basin (UN OCHA/IOM figures, varying by year).
- Chibok: 276 kidnapped April 2014; dozens remained missing years later.
Outcome & legacy (as of September 2026)
Unresolved. Boko Haram/ISWAP no longer holds major towns but remains lethal across the Lake Chad Basin; the humanitarian crisis (millions food-insecure) is among the world's worst. The conflict's legacy includes the global #BringBackOurGirls movement and Nigeria's ongoing counterinsurgency burden.
Tracker pulse
- UCDP codes Nigeria's jihadist conflict as active (government vs. ISWAP/JAS).
- ACLED tracks the Lake Chad Basin weekly; the Nigeria Security Tracker (Council on Foreign Relations) maintained incident-level data.
- ICG, HIIK (limited war/violent crisis), and the UN (OCHA, UNDP) cover it continuously.
- Debate: direct vs. indirect death tolls (35–50k vs. UNDP's 350k including indirect) — report both with the distinction explicit.
Validation tier
Tier 1 — UCDP, ACLED, ICG, HIIK, UN OCHA/UNDP; specific incident casualty counts Tier 3 (press/jihadist claims).
UNVERIFIED points
- Exact direct death toll since 2009 (35,000–50,000+ range).
- UNDP's 350,000 total including indirect deaths (modeled estimate, not a count).
- Jihadist casualty claims for base attacks (e.g., Marte/Wulgo 2025) — unverified.
Sources
- Reuters (MNJTF/regional operations, Nov 2025): https://www.reuters.com/world/africa/west-african-bloc-ecowas-activates-standby-force-against-jihadist-groups-2025-11-27/
- Premium Times (Nigeria, 2025 operations reporting): https://www.premiumtimesng.com/news/headlines/849406-troops-kill-133-suspected-terrorists-arrest-135-in-one-week-dhq.html
- Wikipedia, Boko Haram insurgency (timeline incl. 2025 base attacks): https://en.wikipedia.org/wiki/Boko_Haram_insurgency