← WW3 RISK TRACKER / THEATER: Yemen War & Houthi Attacks
Saudi – Houthis conflict
- Ground combat and coalition air operations across four Yemeni governorates reportedly killed up to 169 people. Yemen Online · 22 Sep 2026[Yemen: 154 Killed in Clashes Between Gov’t Forces , HouthisWorld news | The Guardian · 22 Sep 2026Up to 169 killed in Yemen as Houthis battle for Red Sea coastal heights
- British Prime Minister Andy Burnham authorized RAF Voyager aircraft to refuel Saudi Arabian fighter jets targeting Ansar Allah. World | Deutsche Welle · 22 Sep 2026G7 demands Houthis 'immediately' cease Saudi strikesAl Jazeera – Breaking News, World News and Video from Al Jazeera · 21 Sep 2026UK to refuel Saudi jets to help counter Houthi attacksWorld news | The Guardian · 21 Sep 2026UK to give support to Saudi jets in attempt to counter Houthi fighters
- Yemeni government forces seized Jabal Zalat mountain near the Bab al-Mandeb Strait from Ansar Allah. Anadolu Ajansı Güncel Haberler · 22 Sep 2026Yemeni government forces seize strategic mountain overlooking Bab el-Mandeb: Official
- Ansar Allah officials accused Saudi forces of conducting airstrikes on Mocha that killed six civilians. World news | The Guardian · 22 Sep 2026Up to 169 killed in Yemen as Houthis battle for Red Sea coastal heightsAnadolu Ajansı Güncel Haberler · 22 Sep 2026Saudi airstrikes on port city of Mokha kill 6: Houthi-affiliated news agency
- Escalating combat in western Yemen displaced over 158,000 civilians, driving thousands across the Red Sea into Djibouti. Yemen Online · 22 Sep 2026[Yemen: 154 Killed in Clashes Between Gov’t Forces , HouthisBBC News · 21 Sep 2026Yemenis flee across Red Sea as Houthis and Saudi-backed forces escalate warYemen Online · 21 Sep 2026[More Than 158,000 People Displaced by Escalating Conflict in Yemen
British Aerial Support
British Prime Minister Andy Burnham authorized Royal Air Force Voyager tanker aircraft to conduct air-to-air refueling for Saudi Arabian fighter jets responding to Ansar Allah cross-border attacks. The time-limited deployment follows a formal request from Saudi Arabia to defend its energy infrastructure and territory against incoming ballistic missiles and drones targeting cities like Riyadh. Ansar Allah launched long-range weapons against Saudi urban centers and energy assets, whereas Saudi Arabia conducted airstrikes against Ansar Allah military formations and port sites in Mocha. World | Deutsche Welle · 22 Sep 2026G7 demands Houthis 'immediately' cease Saudi strikesAl Jazeera – Breaking News, World News and Video from Al Jazeera · 21 Sep 2026UK to refuel Saudi jets to help counter Houthi attacksWorld news | The Guardian · 21 Sep 2026UK to give support to Saudi jets in attempt to counter Houthi fighters
Bab al-Mandeb Frontlines
Yemeni government forces captured Jabal Zalat mountain near the Bab al-Mandeb Strait, placing the nearby Al-Omari military camp within direct firing range. Ground battles and coalition airstrikes across Taiz, Marib, Al-Jawf, and Saada governorates killed at least 154 people over three days. Ansar Allah officials separately claimed Saudi airstrikes struck a prison facility in Al-Jawf and killed six civilians in Mocha. Yemen Online · 22 Sep 2026[Yemen: 154 Killed in Clashes Between Gov’t Forces , HouthisWorld news | The Guardian · 22 Sep 2026Up to 169 killed in Yemen as Houthis battle for Red Sea coastal heightsAnadolu Ajansı Güncel Haberler · 22 Sep 2026Yemeni government forces seize strategic mountain overlooking Bab el-Mandeb: Official
Diplomatic Condemnations
Foreign ministers from the Group of Seven issued a joint statement demanding Ansar Allah immediately cease strikes against Saudi Arabia and commercial shipping. The Regional Quadruple Group—comprising Saudi Arabia, Egypt, Pakistan, and Türkiye—met on the sidelines of the United Nations General Assembly to condemn attacks on Saudi territory and reaffirm support for the Presidential Leadership Council. https://saudigazette.com.sa · 22 Sep 2026Saudi Arabia, Egypt, Pakistan, Türkiye condemn attacks on Kingdom, back right to self-defenseWorld | Deutsche Welle · 22 Sep 2026G7 demands Houthis 'immediately' cease Saudi strikeshttps://saudigazette.com.sa · 22 Sep 2026Saudi FM joins regional quartet in New York talks on de-escalation, security
Red Sea Displacement
Fighting along Yemen's western coast displaced more than 158,000 people across eight governorates. Over 3,000 refugees crossed the Bab al-Mandeb Strait aboard boats to reach camps in Obock, Djibouti, where humanitarian agencies prepared emergency assistance. Yemen Online · 22 Sep 2026[Yemen: 154 Killed in Clashes Between Gov’t Forces , HouthisUN News - Global perspective Human stories · 21 Sep 2026UN condemns attempted Houthi strike on Riyadh as Yemen displacement surges past 130,000BBC News · 21 Sep 2026Yemenis flee across Red Sea as Houthis and Saudi-backed forces escalate war
Assessment
Sustained frontline combat along the Red Sea coast alongside expanded British military assistance to Saudi Arabia increases the risk of broader regional conflict.
- 2026-09-22
United Kingdom approved RAF air-to-air refueling support for Saudi Arabia against Houthi attacks.
British Prime Minister Andy Burnham authorized Royal Air Force Voyager tanker aircraft to provide air-to-air refueling for Saudi Arabian fighter jets. The time-limited deployment follows a formal request from Saudi Arabia to defend its territory and energy infrastructure.
- 2026-09-20
Ansar Allah targeted Riyadh and Yanbu with ballistic missiles and drones.
Saudi air defenses intercepted a ballistic missile over Riyadh, while a fuel tank near King Khalid International Airport caught fire following reported drone impacts. Additional strikes targeted Aramco energy facilities in Yanbu and several southern Saudi regions.
- 2026-09-19
Saudi Arabia activated emergency air raid alerts across seven regions, including Riyadh.
Saudi Civil Defense activated national early warning platforms in Riyadh, Jeddah, Taif, and five other regions following Houthi aerial attacks, while falling drone debris caused the first strike fatality in the Kingdom since recent hostilities resumed.
4 more
- 2026-09-18
Ansar Allah forces shoot down Saudi F-15 over Marib
Verified video confirmed that Ansar Allah forces downed a Saudi Arabian F-15 fighter jet over Marib governorate.
- 2026-09-17
Intercepted Houthi drone debris kills civilian in Saudi Arabia's Taif governorate
Falling debris from an intercepted Ansar Allah drone killed a Yemeni resident and injured two civilians in Taif governorate.
- 2026-09-12
Drones launched from Iraq struck Saudi Arabia's East-West oil pipeline, forcing its operational shutdown.
Unmanned aerial vehicles originating from Iraq's Maysan province hit Saudi Arabia's East-West pipeline in the Riyadh and Madinah regions, causing injuries and infrastructure damage. Saudi authorities suspended pipeline operations as a precaution while deferring military retaliation.
- 2026-09-11
Ansar Allah forces seize Mayun Island, expanding control over the Bab al-Mandeb Strait.
Houthi fighters occupied Mayun Island in the Bab al-Mandeb Strait following the retreat of government-aligned forces. The positioning provides Ansar Allah with direct physical control over the southern Red Sea shipping corridor.
COMMON QUESTIONS
Is there a war in Yemen?
Not a declared war between states. The armed confrontation is between the Houthi movement and the Saudi-led coalition and the Yemeni government, and it reaches shipping in the Red Sea and the Bab al-Mandab strait. Fighting has continued through repeated truces without a settlement. Legally a non-international armed conflict — the Houthis against Yemen's government — internationalized by Saudi and Emirati involvement. The index reads 76.9/100 as of 1 January 1970 (full-scale war); above 50 it grades the fighting itself rather than the risk of it.
How dangerous is the Saudi and Houthis situation right now?
The index reads 76.9/100 — full-scale war. The scale is anchored on 22 historical episodes from 1914 to 2005, so the number means the same thing from one theater to the next. It is a measurement of what is reported, not a forecast.
How is the Saudi and Houthis risk index calculated?
By fixed formula from open-source reporting: events are extracted and graded by how well evidenced they are, scored across weighted factors, and the model never picks the number. How the index works, and what it does not measure, is explained at wwiii.report/methodology.
How often is this updated?
Every day. The report is rebuilt from that day's reporting and the index re-judged from it, and a fall is published only once the evidence confirms it.
Timeline events — hover the chart to read them
Timeline events — hover the chart to read them
Timeline events — hover the chart to read them
One 0–100 scale for the whole conflict. 0–49 is escalation before war; 50–100 is active war and how far it has gone.
50 is not a threshold the number can cross on its own. Which side a theater sits on is decided by whether verified belligerents are fighting there, so war onset always moves the score up across 50 — the number never declares a war by climbing.
It is a stage, not a probability: 42 is not a 42% chance of war. Below 50 it grades movement toward war, above 50 the war itself.
Why it moved, under the chart, names what changed in the latest move: the day’s readings — strikes, casualties, talks — and, when the conflict’s stage was re-judged, what was graded differently and the events behind it. Open it for the detail.
Re-judged from open reporting by fixed formula — the model never picks a number — and a fall publishes only once the evidence confirms it. A dot on the line is a day the stage itself moved. How it is made →
Direction — which way the week pushed. Severity — where the index sits. Connections — how much of the rest a shock here reaches. Cascade — that reach combined with how ready this theater is to go off.
The index reads the state of the conflict, not the volume of news. Each run grades the factors listed below against fixed rubrics, and the score follows by formula.
So a dramatic headline moves nothing unless it changes a grade. A theater already graded for recurring incursions absorbs one more without moving — it is priced in.
Open How this was measured for every grade, its movement since the last run, and the events behind it. Full construction →
A different measurement from the score above, from a different source. This line counts how much of the world's news reports conflict between these two states, against their own long-run normal: 100 is normal, 200 is twice the usual level.
It is computed mechanically from the GDELT Project's open event stream every 15 minutes and never touches the assessed index above — when both move together, that agreement is the signal. A day with too few events shows no reading rather than a guess. Click the chart for the full history.
Data: the GDELT Project.