Yemen Offensive Near Mocha Raises Fresh Red Sea Risk for UK and EU Trade

Yemen’s internationally recognised authorities say their forces have advanced toward the approaches to the port city of Mocha, opening a new phase in a conflict that is again drawing attention from businesses, energy traders and policymakers in Britain and across Europe.

The Yemeni authorities say they intend to drive Houthi forces from Mocha, a Red Sea port the group seized a month earlier. The fighting around the city was reported after Rashad al-Alimi, chairman of Yemen’s Presidential Leadership Council, announced on 4 October the start of a large-scale military operation against the Islamist movement Ansar Allah, widely known as the Houthis.

For London and European markets, the renewed fighting is significant because Mocha sits near the Bab el-Mandeb Strait, one of the maritime chokepoints linking the Red Sea to the Gulf of Aden. Any further instability in that corridor can affect shipping schedules, insurance costs and energy expectations at a time when European companies remain sensitive to disruptions in global trade routes.

Al-Alimi has said the goal of the operation is to restore all Yemeni territory to the control of the internationally recognised authorities. That objective would require a major campaign. The Houthis continue to hold substantial parts of the country, including some of its most densely populated areas and the capital, Sanaa.

Yemen’s recognised authorities say the operation is aimed at returning the entire country to government control, while the Houthis are also claiming advances on the battlefield.

Red Sea Risk Returns to the Business Agenda

The renewed military push follows a declaration of general mobilisation by Yemen’s authorities in late September. The government also promised amnesty to members of Ansar Allah who switch sides and join government forces.

But the battlefield picture remains contested. Ansar Allah has also claimed success. Yemen Press Agency, citing a representative of the group, reported that Houthi forces had captured a district in Taiz province as well as the former residence of Rashad al-Alimi in the region.

Al Masirah, a television channel controlled by the Houthis, showed video footage purporting to capture the seizure of al-Alimi’s multi-storey home. In the footage, Houthi fighters raised the group’s flag over the building.

Houthi military spokesman Yahya Saree also claimed that the group had carried out a series of operations inside Saudi Arabia. According to Saree, the Houthis attacked King Khalid International Airport in Riyadh, an Aramco refinery in Rabigh and several military facilities in the kingdom.

Saudi Arabia has not confirmed those claims. At the same time, Riyadh, Ankara and Islamabad have agreed on rapid troop deployment in the region under the Mecca Defence Pact concluded in August. The pact provides for a collective response by Turkey, Saudi Arabia and Pakistan to an attack on any of the three countries. Reuters reported that Riyadh is prepared to take part in the Yemeni government forces’ offensive against the Houthis by providing air support.

For UK and EU businesses, the direct market concern is not only the fighting inside Yemen but the possibility that the conflict will further strain Red Sea traffic. The Bab el-Mandeb Strait is a crucial route for vessels moving between Europe and Asia via the Suez Canal. When perceived risk rises in that area, shipping firms, insurers and commodity traders typically reassess costs and timing.

The source material also links rebel attacks to threats against global trade routes and pressure on energy prices. Those pressures matter for Britain and the European Union because any increase in shipping disruption or oil-market risk can feed into fuel costs, inflation expectations and sterling sentiment. In London, investors are likely to watch energy names, transport-exposed companies and import-heavy retailers for signs of renewed sensitivity to Middle East risk.

Saudi Dimension Adds to Market Uncertainty

The escalation follows a broader period of Houthi military activity in the region. In early September, the Houthis announced an expansion of military operations in the Middle East and struck four cities in southern Saudi Arabia. More than 70 people were injured in the heavy bombardment, and fires broke out at oil facilities. Saudi Arabia responded with more than 60 airstrikes on several Houthi-controlled provinces.

At the same time, the Houthis have intensified attacks inside Yemen with the aim of capturing the country’s entire Red Sea coast. Their military gains, including the seizure of Mocha on the Bab el-Mandeb Strait, have led to Iran and its allies consolidating control over key waterways in the region, according to the source article.

The Houthis’ leadership has separately stated that the Bab el-Mandeb Strait is closed to vessels from Saudi Arabia. That claim, combined with attacks on Saudi targets and the possibility of Saudi air support for Yemeni government forces, adds another layer of risk for European supply chains.

On 19 September, the Saudi-led Coalition to Restore Legitimacy in Yemen said that Yemeni rebels had attempted the previous night to strike Riyadh with a ballistic missile for the first time. The missile was “intercepted and destroyed,” coalition spokesman Brigadier General Turki al-Maliki said at the time on X.

The immediate military balance remains unclear, with both sides asserting progress. What is clearer for British and European business audiences is that the fighting around Mocha has revived concerns about one of the world’s most important commercial passages. If the conflict expands, the effects could be felt well beyond Yemen, from freight pricing and energy markets to sterling-sensitive sectors on the London market.