The Red Sea Is Now Closed — And Asia Is Watching

A Second Chokepoint Just Shut

The Houthis now control the entrance to the Red Sea.

Perim Island sits in the middle of the Bab el-Mandeb strait — the narrow throat connecting the Red Sea to the Gulf of Aden and, beyond it, the Suez Canal to the north and the open Indian Ocean to the south. On September 11, Yemeni government forces withdrew from the island, and armed Houthi militants moved in. Multiple outlets confirmed it: the Associated Press, AFP, Reuters, all reporting the same escalation in real time.

Hazem al-Aswad, a member of the Houthi political bureau, didn’t mince words. Speaking to Arab al-Jadeed, he said navigation and international trade through the Red Sea and Bab el-Mandeb were “being maintained safely and orderly.” That phrasing may sound diplomatic, but the subtext is unambiguous: the Houthis consider themselves in charge.

If confirmed, that makes two critical maritime chokepoints in the region effectively under Iranian-aligned control. The Strait of Hormuz has been under periodic disruption for months. Now the Red Sea — which handles roughly 12 percent of global seaborne oil traffic — is no longer open for business as usual.

Saudi Retaliation Brings a Local War Into Open Conflict

Saudi Arabia did not wait. Reports indicate it struck Mocha airport, a Houthi-held location on Yemen’s Red Sea coast. The Houthis, in turn, launched attacks on Saudi territory from their positions in eastern Yemen. This is no longer a skirmish along a border — it is a regional fight playing out across the Red Sea littoral.

Yemen’s internationally recognized government has signaled it will attempt to retake Houthi-held coastal areas this week. Colonel Majed al-Naqili warned residents to avoid roads between Taiz and Mocha and to stay away from equipment used by Houthi fighters. The language suggests the government sees the situation as a military occupation, not a contested front.

The human toll is already steep. The International Organization for Migration reported on the same day that at least 46,000 people had fled their homes in Yemen since fighting intensified the previous week — and the number was rising hourly.

Why This Should Make East Asia Lose Sleep

Most East Asian governments are still processing what the Red Sea closure means in abstract terms. The concrete impact hits differently.

Japan and South Korea — two of the world’s largest energy importers — get the vast majority of their crude oil shipped through the Strait of Hormuz and the Red Sea. A functioning Bab el-Mandeb is not a nice-to-have for Tokyo or Seoul. It is infrastructure they built their energy security strategies around. Shipping lanes, insurance premiums, tanker schedules, refinery input contracts — all of it assumed an open strait.

When Hormuz was already disrupted earlier in the year, analysts noted the risk to Asian fuel supplies. Now that a second chokepoint has fallen, the exposure multiplies. Even if tankers reroute around the Cape of Good Hope, the journey from the Persian Gulf to East Asia more than doubles in distance. That means fewer trips, higher costs, longer lead times, and tighter spot markets. The financial pass-through to consumers is not theoretical.

China faces a similar structural vulnerability. Most of its Middle Eastern oil imports transit the same routes. Beijing’s energy corridors through Pakistan’s Gwadar port and its investments in Myanmar are alternatives, but they move a fraction of what flows through the Red Sea. No one in East Asia has a shortcut.

The US Deterrence Question

The more strategic question hangs over Washington’s credibility. The United States has deployed naval forces to the Red Sea in recent months, conducting strikes against Houthi targets and escorting commercial vessels. But capability and perception diverge. Holding a blockade is easier than lifting one — and the Houthis now hold territory, not just launch missiles from it.

Perim Island changes the calculus. It is not a remote launch site. It is a fixed position at the narrowest point of the strait, within sight of the main shipping lane. Re-taking it would require an amphibious or airborne operation in contested territory, with Saudi ground forces as the likely tip of the spear and US air and naval support as the force multiplier. That is a significantly higher commitment than the hit-and-run strikes seen so far.

For allies in the region, the question is not whether the US can project power to the Red Sea. It is whether it will, and what it is willing to lose to do so. Every escalation in Yemen draws Washington deeper into a proxy conflict it has spent years trying to disengage from. But every step back raises the same question that has been hovering over Hormuz: what happens when a US ally’s energy supply depends on a waterway the United States cannot guarantee?

What Comes Next

The immediate trajectory is violence. Houthi forces are entrenched on Perim Island and along the Red Sea coast. Yemeni government troops are mobilizing to push back. Saudi air power is already in the mix. The IOM’s displacement figures are likely a floor, not a ceiling.

The secondary trajectory is economic. Shipping insurers will revise risk ratings for the Red Sea corridor almost immediately. Premiums that were already elevated will spike further. Some carriers will suspend transits entirely, which means cargo already booked for ports like Jeddah, Duba, and Aqaba faces cancellation or rerouting. The pressure will travel up the supply chain — refining margins in Singapore and Incheon, freight rates across the Pacific, and ultimately shelf prices for gasoline and diesel in Asia.

The tertiary trajectory is geopolitical. Iran has invested heavily in the Houthi movement as its most capable proxy. Controlling Perim Island is a strategic asset Tehran did not need to formally claim. It benefits from the ambiguity. Each day the Houthis hold the island without a direct Iranian military response, the doctrine of plausible deniability proves its worth.

What the world is seeing is not simply a regional conflict expanding. It is the gradual construction of a second Iranian perimeter — one that runs from the Persian Gulf through the Red Sea and into the approaches of Africa’s Horn. East Asia, which has been watching Hormuz with growing anxiety, now faces a scenario its planners considered unlikely and its industries unprepared for.

The Red Sea was never supposed to close. That assumption is now over.