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What Happened.

The renewed war in Yemen has now displaced more than 100,000 people inside the country, with thousands more fleeing across the Red Sea to Djibouti, according to the U.N. refugee agency. The surge follows the Houthis’ rapid offensive along Yemen’s western coast, which has expanded their territorial control and tightened their position around the strategically vital Bab el-Mandeb Strait. The Iran-aligned movement is simultaneously escalating missile and drone attacks against Saudi Arabia, while Saudi and Yemeni aircraft are striking Houthi positions in response. Humanitarian access is increasingly constrained by insecurity, damaged roads, communications outages and restrictions on movement. Reuters Reuters — Yemen conflict displaces more than 100,000 people UNHCR — Escalating conflict drives new displacement and refugee arrivals in Djibouti

How This Affects Ordinary People.

The displacement is accelerating extraordinarily quickly. Only days ago, estimates placed the newly displaced population above 80,000; UNHCR now says it exceeds 100,000, while families are arriving in makeshift camps around Aden and elsewhere with little food, water, clothing or shelter. Reuters documented civilians walking for days to escape the fighting, including families fleeing after relatives were killed or wounded by strikes. Thousands have made the dangerous sea crossing to Djibouti. The crisis is unfolding in a country already devastated by more than a decade of war, where millions were displaced even before the current offensive began. Reuters Reuters — Families flee toward Aden as Houthi offensive expands UNHCR — Humanitarian access deteriorates as displacement accelerates

Why This Matters.

This is becoming more than another phase of Yemen’s civil war. The Houthis have effectively taken control of almost the entire western Red Sea coast, according to officials from the Saudi-backed Yemeni government, while simultaneously attacking Saudi territory and strengthening their position around Bab el-Mandeb—one of the world’s most important maritime chokepoints. Saudi Arabia issued unusually broad security alerts Tuesday, including the first alert of the current war for Mecca, after a week of attacks; 13 Saudi civilians were wounded in Houthi strikes Monday. The U.N. Security Council is now preparing to discuss the deteriorating Bab el-Mandeb crisis, while Saudi and Egyptian leaders are coordinating over Red Sea security. Reuters Reuters — Saudi Arabia issues its widest security alerts as Yemen war expands Reuters — Houthis tighten their grip on Bab el-Mandeb as civilians flee

What Changed.

The last Yemen Global Story Watch report recorded more than 80,000 people displaced as the Houthi offensive expanded into Saudi Arabia. The new development is that displacement has already crossed 100,000, thousands are now escaping Yemen altogether by sea, Houthi control has consolidated across almost the entire western coastline, and Saudi Arabia has issued unprecedented alerts extending as far as Mecca and Jeddah. The combination of rapidly accelerating civilian flight, expanding cross-border attacks and the Houthis’ strengthened position around Bab el-Mandeb shows that the conflict is moving from a renewed Yemeni civil war toward a wider Red Sea regional crisis. That deterioration crosses the alert threshold again. Reuters Reuters — UN says Yemen displacement has now exceeded 100,000 Reuters — Expanding Houthi attacks draw Saudi Arabia deeper into the regional war