Yemen’s rampant
Houthi forces have captured a strategic island in the
Bab al-Mandab strait, expanding their control of the narrow waterway, one of the world’s vital shipping routes.The
Iran-aligned Houthis took control of the volcanic island after forces allied to the
UN-backed,
Aden-based government left in the latest of a dramatic series of reverses along
Yemen’s west coast in recent days, including the loss of the port city of
Mocha on Thursday.
Saudi Arabia, which supports and bankrolls the official
Yemen government, mounted air raids on
Houthi positions in
Mocha on Friday.The
Bab al-Mandab strait links Asia to Europe via the Red Sea and Suez canal.
Perim island, also known as Mayun, divides the waterway in two, close to its narrowest point. The
United Arab Emirates, a former Saudi ally in the anti-
Houthi coalition, had been building an airbase on the island before ending its active involvement in the conflict in January.
Saudi Arabia has increasingly relied on the Red Sea and Bab al-Mandab to export its crude since
Iran has been targeting vessels in the
Strait of Hormuz. About 12% of the world’s goods are typically shipped through the strait.Fighters loyal to the
Houthi authorities march during a rally to recruit more fighters, in Sana’a on Thursday. Photograph: AFP/Getty ImagesFull
Houthi control of shipping in the strait, alongside Iranian control of the
Strait of Hormuz, would strengthen the chokeholds of anti-western forces over global energy shipments. Oil prices have risen to more than $100 a barrel as the fighting in
Yemen has escalated.
Iran hailed the
Houthi advances in an official statement on Friday, its first extended comment on the renewed fighting inside
Yemen.
Iran and the Houthis have been allied since the Houthis rose to power inside
Yemen in 2014.British diplomatic sources said they did not at present expect
Donald Trump to sanction any US bombing of
Houthi positions in
Yemen, despite requests to do so from
Saudi Arabia. The pace of the
Houthi advance, and political divisions in the
Yemen governorates not controlled by the Houthis, have left western capitals fearful that even the
Yemen government capital,
Aden, could fall to the Houthis. The UK effectively treated
Yemen as a British protectorate until 1967.The surge in fighting in the past week had sent more than 46,000 people fleeing, and “overnight, large numbers of people were reportedly seen leaving
Mocha with their belongings”, the
UN migration agency said on Friday.
Perim island seen in a 2021 satellite photograph. Photograph: Planet Labs Inc./APThe
Houthi progress down the Red Sea coast from the port of Hodeidah also strengthens
Iran’s hand in trying to reach an agreement with other Gulf states on future control of the
Strait of Hormuz, the central dispute between the US and
Iran.
Iran has reached an agreement on temporary approved routes with Oman, the country sharing the southern coast of the Hormuz strait. The proposed deal is supposed to be discussed at a meeting of Gulf Cooperation Council (GCC) foreign ministers in the Omani coastal city of Salalah on Monday.The deal, including a temporary approved route for shipping largely under Iranian control, would – if agreed by the GCC – put pressure on the US to lift its highly effective blockade of Iranian oil ports, which is severely damaging the Iranian economy.The US struck a surprise ceasefire deal with the Houthis in May 2025 after the cost of a bombing campaign escalated, and Houthis gave private assurances that they would not attack US shipping in the Red Sea. The
Houthi leadership this week continued to give similar assurances to all shipping except Saudi Arabian oil tankers.On 14 August
Saudi Arabia assembled a 14-country international maritime naval coalition to protect freedom of navigation in the
Bab al-Mandab strait and the Gulf of
Aden. The coalition, including Bahrain, Pakistan, Somalia, Djibouti, Turkey and Egypt, has so far been invisible, though Riyadh would argue that such a coalition of the willing takes time to assemble.Recriminations are under way over the fall of
Mocha, with the role of Maj Gen Tareq Saleh, the leader of the National Resistance Forces that retreated from the city, under scrutiny. He said the retreat was necessary to regroup his forces.On her Facebook page, the Yemeni 2011 Nobel peace prize winner, Tawakkol Karman, called on
Yemen’s president, Rashad al-Alimi, to dismiss Saleh and to refer him for investigation and trial of charges of conspiracy and high treason.
Saudi Arabia is facing a familiar dilemma: whether to reach a negotiated settlement with the Houthis on the future of
Yemen or to try to push the highly stretched
Houthi forces back.Although the Houthis operate independently of Tehran’s instructions, it is hugely to
Iran’s advantage for them to be fighting
Saudi Arabia, as the Saudis are more likely in turn to put pressure on Washington to relent over
Iran.There is also concern in western capitals about the use of western weaponry by the Saudis in
Yemen, and whether their activity complies with international humanitarian law, including whether the Saudi strikes can truly be seen as acts of self-defence.