Nigeria › Borno state › December 2025
Borno state: conflict events in December 2025
Monthly report from UCDP event data for Borno state, Nigeria. Country-wide report: Nigeria, December 2025.
In December 2025, UCDP recorded 32 organized-violence events in Borno state, Nigeria, with 114 estimated deaths. That is +14% compared with 28 events the month before. The death toll range is 59 to 154.
78% of the month's events were state-based armed conflict. Civilian deaths: 14.
The most active pairing was Government of Nigeria - IS with 23 events.
Where events happened
Deadliest events, December 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 25 Dec 2025 | Konduga lga Borno state | Government of Nigeria vs IS State-based, 3 sources | 19 0–19 |
| 21 Dec 2025 | Konduga lga Borno state | Government of Nigeria vs IS State-based, 4 sources | 17 17–21 |
| 25 Dec 2025 | Bama lga Borno state | Government of Nigeria vs IS State-based, 3 sources | 10 0–9 |
| 25 Dec 2025 | Bama lga Borno state | Government of Nigeria vs IS State-based, 3 sources | 9 0–10 |
| 25 Dec 2025 | Bama lga Borno state | Government of Nigeria vs IS State-based, 3 sources | 9 9–10 |
| 11 Dec 2025 | Borno state | IS vs Civilians One-sided, 7 civilian | 7 0–7 |
| 15 Dec 2025 | Gwoza lga Borno state | Government of Nigeria vs JAS State-based, 4 sources | 6 0–6 |
| 24 Dec 2025 | Maiduguri lga Borno state | JAS vs Civilians One-sided, 5 civilian, 12 sources | 5 5–8 |
| 12 Dec 2025 | Gwoza lga Borno state | Government of Nigeria vs IS State-based, 2 sources | 4 |
| 18 Dec 2025 | Gwoza lga Borno state | Government of Nigeria vs IS State-based, 4 sources | 3 |
Parties
| Party | Events | Est. deaths |
|---|---|---|
| IS | 28 | 101 |
| Government of Nigeria | 25 | 100 |
| JAS | 3 | 12 |
| Farmers (Nigeria) | 1 | 1 |
| Herders (Nigeria) | 1 | 1 |
All months
Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024Jul 2024
Source: UCDP GED and Candidate Events, CC BY 4.0. See methodology.