Houthis’ Rapid Advance in Yemen: Why Saudi Arabia and the Red Sea Are at Risk

September 12, 2026

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The situation in Yemen has once again become a major concern for the Middle East and the wider world.

The Houthis, also known as Ansar Allah, have made significant advances along Yemen’s western coast, including the strategic city of Mokha. Their movement toward the Dhubab area and the Bab al-Mandab Strait has increased concerns about Saudi Arabia, international shipping and the security of one of the world’s most important maritime routes.

But who are the Houthis? Why are they advancing? And why is their position near the Red Sea so important?

Who Are the Houthis?

The Houthis are a powerful political and armed movement based in Yemen. They are also known as Ansar Allah.

The group became a major force in Yemen during years of political and military conflict. In 2014, the Houthis took control of Yemen’s capital, Sanaa, leading to a wider conflict involving Yemen’s internationally recognised government and regional powers.

The Houthis have close ties with Iran and are widely described by international sources as being supported by Tehran. At the same time, analysts point out that the Houthis also have their own political and military objectives inside Yemen.

Why Is Mokha Important?

Mokha is located on Yemen’s western coast along the Red Sea.

Its location makes it strategically important because it is relatively close to the Bab al-Mandab Strait.

Recent reports say Houthi forces captured Mokha as part of their advance along the western coast. This has raised concerns because control of the area could strengthen their position around one of the most important maritime routes in the region.

The nearby Dhubab area is also strategically important because of its location close to Bab al-Mandab.

What Is the Bab al-Mandab Strait?

Bab al-Mandab is a narrow waterway connecting the Red Sea with the Gulf of Aden and the wider Indian Ocean.

It is an important route for international trade.

Large numbers of commercial vessels use the Red Sea route to move goods between Asia, the Middle East and Europe.

Any major security problem in this area can therefore affect shipping costs, delivery times, insurance and energy markets.

Recent Houthi advances have increased fears that the security of this route could deteriorate further.

Why Is Saudi Arabia Concerned?

Saudi Arabia shares a long border with Yemen, making developments inside Yemen directly important to Saudi security.

The Houthis have previously carried out attacks involving drones and missiles against Saudi territory and infrastructure. Recent fighting has again raised concerns about possible attacks and the security of Saudi interests in the Red Sea.

Saudi Arabia is also concerned about maritime routes used for its oil exports.

The Red Sea can provide an important alternative route for Saudi oil shipments, particularly when other regional waterways face security problems.

That makes Bab al-Mandab strategically important not only for Yemen but also for Saudi Arabia and international energy markets.

Iran’s Role

Iran’s relationship with the Houthis is one of the most important parts of the wider regional picture.

International reporting commonly describes the Houthis as Iran-backed. Tehran has supported the group, while Iran has also denied having complete control over Houthi decisions.

This means the conflict is not simply a local Yemeni dispute.

It is connected to the wider competition between regional powers and the changing security situation across the Middle East.

Could Global Trade Be Affected?

This is one of the biggest concerns.

If attacks or military operations continue around the Red Sea and Bab al-Mandab, shipping companies may decide to avoid the area or take longer alternative routes.

Longer routes can increase fuel consumption, insurance costs and delivery times.

Previous Houthi attacks on shipping have already caused major changes in maritime traffic through the Red Sea. Recent advances near Bab al-Mandab have renewed concerns about the future of the route.

The effects could also reach international energy markets.

Oil prices are highly sensitive to major conflicts and threats to important shipping routes. Recent market movements have shown how quickly Middle East tensions can affect energy prices.

Could Yemen Return to a Larger War?

Another major concern is Yemen itself.

The country has suffered from years of conflict, displacement and economic hardship.

The recent Houthi advance and fighting with government-aligned forces have raised fears that the conflict could once again become a much larger war.

The United Nations has warned about the serious risk of further escalation, while international actors continue to call for restraint and a political solution.

For ordinary Yemenis, another major escalation could mean more displacement, economic problems and difficulties in accessing basic services.

What Happens Next?

The coming days and weeks could be important.

The key areas to watch are Mokha, Dhubab, the Red Sea coastline and the Bab al-Mandab Strait.

If the Houthis continue expanding their position toward this strategic waterway, pressure on Saudi Arabia and other regional powers could increase.

At the same time, any major military response could increase the risk of a wider regional conflict.

The biggest question is whether the situation will lead to another prolonged military confrontation or whether diplomatic efforts can prevent further escalation.

Final Thoughts

The Houthi advance in Yemen is important far beyond Yemen’s borders.

Mokha, Dhubab and Bab al-Mandab are strategically located areas that connect the conflict in Yemen with international shipping, Saudi security and global energy markets.

For Saudi Arabia, the main concerns include its southern border, attacks on infrastructure and the security of Red Sea shipping.

For the rest of the world, the biggest concern is the possibility of disruption to one of the major trade routes connecting Asia and Europe.

As the situation continues to develop, the world will be watching Yemen’s western coast and the Bab al-Mandab Strait closely.