The entry of Yemen’s Houthi movement into the escalating conflict between Iran and its adversaries marks a dangerous novel phase, potentially expanding the arena of hostilities beyond direct confrontation between Israel and Iran. While initial Houthi actions have involved missile and drone launches towards Israel, the more significant threat lies in their capacity to disrupt global shipping through the Bab al-Mandab strait, a vital waterway connecting the Red Sea and the Gulf of Aden. The potential closure of both the Bab al-Mandab and the Strait of Hormuz – already experiencing Iranian interference – could have devastating consequences for the world economy, a reality underscored by the historical observation that a nation’s geography shapes its policy.
For years, the Houthis, a Zaidi Shia Muslim group who seized control of large parts of Yemen in 2014, have demonstrated resilience and a willingness to withstand setbacks. In August 2025, a targeted Israeli strike killed several high-ranking Houthi officials, including the prime minister and chief of staff, yet the movement’s leader, Abdul Malik Al-Houthi, remains elusive. Despite not directly engaging in combat on behalf of Iran, United Nations reports have documented the flow of arms from Tehran to the Houthis, solidifying their role as a key proxy in the region. This latest escalation, is not entirely unexpected, but its scope and potential impact are raising alarms internationally.
A fragile ceasefire between the Houthis and the United States, brokered by Oman, had been in place since May 2025, stemming from Houthi attacks on US shipping in the Bab al-Mandab that began in October 2023. These attacks prompted a US-led military response, inflicting damage on Houthi missile launchers. While the Houthis maintained the ceasefire did not extend to Israel, sporadic attacks continued. The truce was, in part, motivated by a desire from Iran to create a more favorable environment for potential nuclear negotiations with the US, and was briefly extended to include Israel following a ceasefire agreement between Israel and Hamas in Gaza. Even the joint Israeli-US assault on Iran in April 2024 did not trigger a full resumption of hostilities from the Houthis.
The Strategic Importance of the Bab al-Mandab
The Bab al-Mandab, meaning “Gate of Tears” in Arabic, is a narrow strait separating Yemen on the Arabian Peninsula from Djibouti and Eritrea in the Horn of Africa. It’s a critical chokepoint for global trade, with approximately 12% of world trade passing through it annually, including significant volumes of oil and liquefied natural gas. The U.S. Energy Information Administration details the strait’s importance and potential vulnerabilities. Any sustained disruption to traffic through this waterway would inevitably drive up shipping costs, increase oil prices, and further strain a global economy already grappling with economic headwinds.
Farea Al-Muslimi, a Middle East specialist at Chatham House, warns that a prolonged closure could have far-reaching consequences. “The Houthis’ power lies in their ability to interdict ships, not necessarily in launching missiles towards Israel,” he explained. “Their control of the Bab al-Mandab gives them a disproportionate amount of leverage.” This leverage is amplified by the fact that alternative shipping routes, such as circumnavigating Africa via the Cape of Good Hope, are significantly longer and more expensive.
Saudi Arabia’s Role and Yemen’s Internal Dynamics
The situation is further complicated by the internal dynamics within Yemen and the shifting alliances in the region. Saudi Arabia, which has been involved in a military intervention in Yemen since 2015, currently holds significant influence over the country’s future. The Saudis have largely sidelined the Southern Transitional Council (STC), a separatist group advocating for an independent South Yemen, with support from the United Arab Emirates waning under pressure from Riyadh. The UAE has since withdrawn from Yemen, leaving Saudi Arabia as the dominant external actor.
This shift in power dynamics presents both opportunities and challenges. Saudi Arabia is now tasked with reaching agreements not only with the former supporters of the STC but also with the Houthis. Some analysts suggest the Houthis may be willing to exercise caution, potentially seeking financial rewards from Saudi Arabia in exchange for maintaining a degree of stability in the Red Sea and avoiding renewed conflict in the south. Saudi Arabia is reportedly investing heavily in the new government in the south, and the Houthis may spot an opportunity to secure a share of these funds.
Iran’s Regional Strategy and the Broader Context
The Houthis’ actions are widely seen as part of a broader Iranian strategy to activate allied groups across the region, exerting pressure on Israel and the United States. This strategy has been evident in the activities of Hezbollah in Lebanon, various Shia militias in Iraq, and other Iranian-backed groups in Syria. Al-Muslimi predicts that over time, there may be growing resentment within Yemen towards the Houthis’ perceived alignment with Iran. “The perception that the Houthis are too attentive to Iranian interests could erode their support base over time,” he noted.
The UN Special Envoy for Yemen, Hans Grundberg, has repeatedly warned against escalation, stating that it “threatens to drag Yemen into the regional war, which will build resolving the conflict in Yemen more difficult, deepen its economic repercussions and prolong the suffering of civilians.” His warnings underscore the precarious situation in Yemen, a country already devastated by years of civil war and humanitarian crisis.
Looking Ahead
The immediate future hinges on whether the Houthis will prioritize disrupting maritime traffic in the Bab al-Mandab or continue with limited missile attacks on Israel. The extent of Iranian direction and support will also be a crucial factor. The United States and its allies are likely to continue monitoring the situation closely and may consider further military measures to protect shipping lanes. Negotiations, potentially involving Oman and Saudi Arabia, remain a key avenue for de-escalation, but their success will depend on the willingness of all parties to compromise.
The situation in Yemen remains deeply complex and volatile. The coming weeks will be critical in determining whether the Houthis’ entry into the conflict will further escalate regional tensions or create an opportunity for a renewed push towards a lasting peace. For updates on the situation in Yemen, please refer to the United Nations Assistance Mission in Yemen (UNAMI) website.
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