Countries › Syria › December 2025
Syria: conflict events in December 2025
Monthly report from UCDP event data.
In December 2025, UCDP recorded 18 organized-violence events in Syria, with 42 estimated deaths. That is +260% compared with 5 events the month before. The death toll range is 42 to 43.
56% of the month's events were non-state conflict. Civilian deaths: 17.
Events were concentrated in Deir ez Zor governorate (7), Homs governorate (3), Ar Raqqah governorate (2).
The most active pairing was IS - SDF with 10 events.
Where events happened
Regions, December 2025
| Region | Events | Est. deaths |
|---|---|---|
| Deir ez Zor governorate | 7 | 9 |
| Homs governorate | 3 | 13 |
| Ar Raqqah governorate | 2 | 6 |
| Aleppo governorate | 2 | 6 |
| Idlib governorate | 2 | 5 |
| Al Hasakah governorate | 2 | 3 |
Deadliest events, December 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 26 Dec 2025 | Mintaqat Markaz Homs district Homs governorate | Saraya Ansar al-Sunna vs Civilians One-sided, 8 civilian, 2 sources | 8 |
| 22 Dec 2025 | Jabal Saman district Aleppo governorate | Government of Syria vs SDF State-based, 4 civilian, 2 sources | 5 |
| 19 Dec 2025 | Tadmur district Homs governorate | Government of Syria vs IS State-based | 5 |
| 14 Dec 2025 | Maarat al-Numaan district Idlib governorate | Government of Syria vs IS State-based | 4 |
| 23 Dec 2025 | Ar Raqqah district Ar Raqqah governorate | IS vs SDF Non-state, 1 civilian | 3 |
| 18 Dec 2025 | Ar Raqqah district Ar Raqqah governorate | IS vs SDF Non-state, 2 civilian | 3 |
| 25 Dec 2025 | Deir ez Zor governorate | IS vs SDF Non-state, 2 sources | 2 |
| 21 Dec 2025 | Al Mayadin district Deir ez Zor governorate | IS vs SDF Non-state | 2 |
| 6 Dec 2025 | Al Hasakah district Al Hasakah governorate | IS vs SDF Non-state | 2 |
| 30 Dec 2025 | Albu Kamal district Deir ez Zor governorate | IS vs Civilians One-sided, 1 civilian | 1 |
Parties
| Party | Events |
|---|---|
| IS | 14 |
| SDF | 12 |
| Government of Syria | 5 |
| Saraya Ansar al-Sunna | 1 |
Type of violence
| Category | Events |
|---|---|
| State-based | 4 |
| Non-state | 10 |
| One-sided | 4 |
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. Counts use the "best" fatality estimate. See methodology.