Countries › Indonesia › December 2025
Indonesia: conflict events in December 2025
Monthly report from UCDP event data.
In December 2025, UCDP recorded 6 organized-violence events in Indonesia, with 8 estimated deaths. That is +50% compared with 4 events the month before. The death toll range is 7 to 8.
67% of the month's events were state-based armed conflict. Civilian deaths: 3.
Events were concentrated in Papua Pegunungan province (4), Papua Tengah province (1), Papua province (1).
The most active pairing was Government of Indonesia - OPM with 4 events.
Where events happened
Regions, December 2025
| Region | Events | Est. deaths |
|---|---|---|
| Papua Pegunungan province | 4 | 5 |
| Papua Tengah province | 1 | 2 |
| Papua province | 1 | 1 |
Deadliest events, December 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 1 Dec 2025 | Papua Pegunungan province | Government of Indonesia vs OPM State-based | 2 |
| 1 Dec 2025 | Papua Tengah province | Government of Indonesia vs OPM State-based | 2 |
| 25 Dec 2025 | Yahukimo regency Papua Pegunungan province | OPM vs Civilians One-sided, 1 civilian | 1 0–1 |
| 16 Dec 2025 | Nduga regency Papua Pegunungan province | Government of Indonesia vs Civilians One-sided, 1 civilian | 1 |
| 12 Dec 2025 | Nduga regency Papua Pegunungan province | Government of Indonesia vs OPM State-based, 1 civilian | 1 |
| 1 Dec 2025 | Papua province | Government of Indonesia vs OPM State-based | 1 |
Parties
| Party | Events |
|---|---|
| OPM | 5 |
| Government of Indonesia | 5 |
Type of violence
| Category | Events |
|---|---|
| State-based | 4 |
| Non-state | 0 |
| One-sided | 2 |
All months
Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 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. Counts use the "best" fatality estimate. See methodology.