← WW3 RISK TRACKER / THEATER: Yemen War & Houthi Attacks
Saudi – Houthis conflict
- Ansar Allah launched a long-range missile and drone barrage targeting sites in Riyadh. Anadolu Ajansı Güncel Haberler · 19 Sep 2026Yemen’s Houthis claim missile, drone attacks on Saudi capitalWorld news | The Guardian · 19 Sep 2026Thick smoke seen near Riyadh airport after air raid alerts in Saudi capitalBBC News · 19 Sep 2026Houthis say they targeted Saudi capital with ballistic missiles
- Royal Saudi Air Defense Forces intercepted a Houthi ballistic missile fired toward the Saudi capital. https://saudigazette.com.sa · 19 Sep 2026Saudi air defenses intercept Houthi ballistic missile targeting RiyadhAnadolu Ajansı Güncel Haberler · 19 Sep 2026Saudi Arabia says it intercepted Houthi ballistic missile targeting RiyadhYemen Online · 19 Sep 2026[Saudi Arabia Announces Interception of Houthi Missile
- Clashes along the Lahj-Taiz border left 17 Yemeni government soldiers and 31 Ansar Allah fighters dead. Yemen Online · 20 Sep 2026[Yemen : At Least 48 Killed in Heavy Fighting Between Yemeni Gov’t Forces ,HouthisAnadolu Ajansı Güncel Haberler · 19 Sep 2026Yemen’s army says 13 soldiers killed in fighting with Houthis in Taiz, Lahj
- European Union naval mission Aspides raised its alert level for warships operating in the southern Red Sea. Yemen Online · 20 Sep 2026[EU Naval Mission Raises Alert Level in Southern Red Sea Amid Escalating Houthi Threats
- Yemeni security forces in Aden arrested a suspect after discovering an explosive plot against military facilities. Yemen Online · 20 Sep 2026[Yemen : Aden Police Foil Bomb Plot Targeting Security Forces , Vital Facilities
Riyadh and Yanbu Strikes
Ansar Allah launched ballistic missiles and drones against Riyadh and Aramco oil facilities in Yanbu, causing a fuel tank fire near King Khalid International Airport and temporary flight disruptions. Royal Saudi Air Defense Forces intercepted a ballistic missile over the capital while thwarting additional aerial attacks aimed at Baish, Taif, and Farasan. Anadolu Ajansı Güncel Haberler · 19 Sep 2026Yemen’s Houthis claim missile, drone attacks on Saudi capitalhttps://saudigazette.com.sa · 19 Sep 2026Saudi air defenses intercept Houthi ballistic missile targeting RiyadhWorld news | The Guardian · 19 Sep 2026Thick smoke seen near Riyadh airport after air raid alerts in Saudi capital
Lahj-Taiz Ground Offensives
High-intensity ground combat between Yemeni government forces and Ansar Allah fighters along the Lahj-Taiz border resulted in at least 48 casualties over 24 hours, comprising 17 government troops and 31 Houthi fighters. Fighting centered on the Kahboub, Jabal Habashi, and Rasin fronts as Ansar Allah attempted to secure mountain ridge positions overseeing routes toward the Bab al-Mandeb Strait. Yemen Online · 20 Sep 2026[Yemen : At Least 48 Killed in Heavy Fighting Between Yemeni Gov’t Forces ,HouthisAnadolu Ajansı Güncel Haberler · 19 Sep 2026Yemen’s army says 13 soldiers killed in fighting with Houthis in Taiz, LahjYemen Online · 20 Sep 2026[Yemen: Military Reinforcements Deployed to Lahj Governorate After Houthi Infiltration
Maritime Defense Posture
European Union naval mission Aspides raised the alert level for its warships in the southern Red Sea following increased threat levels against commercial shipping. In Aden, police arrested a suspect and seized explosives, thwarting a plot targeting military positions and vital infrastructure. Yemen Online · 20 Sep 2026[Yemen : Aden Police Foil Bomb Plot Targeting Security Forces , Vital FacilitiesYemen Online · 20 Sep 2026[EU Naval Mission Raises Alert Level in Southern Red Sea Amid Escalating Houthi Threats
Assessment
Cross-border strikes reaching central Saudi Arabia alongside heavy frontline battles in southern Yemen significantly escalate the risk of wider regional combat.
- 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.
- 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.
4 more
- 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.
- 2026-09-10
Ansar Allah forces capture the strategic Red Sea port city of Mocha.
Ansar Allah fighters seized the port city of Mocha and advanced along Yemen's western coast, driving civilian displacement toward Aden and drawing heavy Saudi-led airstrikes.
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.