CSI / ACLED GEOPOLITICAL DATA / Yemen Crisis Report
Yemen
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Nearly a decade of conflict has devastated infrastructure and divided the territory. Our ACLED data analysis confirms a critical escalation in asymmetric warfare after Operation Prosperity Guardian.
What the data reveals
Source: ACLED · Period: Jan 2023 – Mar 2025 · Last updated: Mar 2025
Yemen is no longer just a frozen civil war. Since November 2023, three dynamics overlap and reshape the map of violence.
- The Houthi maritime campaign in the Red Sea spikes events by 90% between 2023 and 2024, from 6,624 to 12,605 annual events.
- The US and UK launch over 500 military operations since January 2024, including 793 air and drone strikes on Yemeni territory.
- Internal battles generate 76% of the 5,940 fatalities in the period, with AQAP maintaining 254 events and 311 deaths.
- Ad Dali leads in fatalities (1,393) despite not being the governorate with the most events — a sign of concentrated high-intensity violence.
- December 2024 marks the peak in fatalities (380), coinciding with the final bombing escalation and intensification of internal clashes.
What you will find
- —Two original analysis narratives: Red Sea and US/UK operations
- —Full timeline, typology and actors of the conflict
- —Geographic distribution and civilian targeting dynamics
Data board
Operational indicators drawn from the same ACLED universe as this dossier.
793
Air / drone strikes
Incidents on Yemeni territory (narrative series)
5,940
Total fatalities
Deaths in the ACLED window
1,939
Civilian-targeting incidents
Accumulated civilian-targeting events
512
US/UK operations
Count since Jan 2024
3,823
Red Sea / maritime axis
Events tied to the Red Sea narrative
21,961
Total events
Yemen universe in ACLED
Methods and data notes
What is ACLED?
ACLED (Armed Conflict Location & Event Data Project) collects data on political violence and protest events in near real time.
What is counted
Events (discrete incidents) and fatalities (deaths) are counted. Figures are conservative due to underreporting and coverage bias.
Limitations
Limitations: reporting bias by territorial access, underreporting in active conflict zones, and the inherent difficulty of categorizing maritime/naval events crossing jurisdictional boundaries.
Editorial approach
This page does not replicate ACLED data — it interprets it from the IAWatch editorial perspective. The narratives, groupings and analyses are original work by the IAW team.
Update frequency: weekly. Data may differ between versions.