In its latest MENA Weekly briefing for the week ending Friday, July 24, Global Situational Awareness details all the latest developments in the Middle East region, including in Yemen, where the Houthi maritime blockade which has been threatening Saudi shipping and Red Sea trade, and the Houthi strikes which have threatened Saudi Arabia’s Hormuz Bypass. In Iran and GCC, renewed conflict has sustained missile, aviation and infrastructure risks, and in Syria, UAE and Russian interests converged at Tartus port. All this, and more is covered. This is an excerpt, with the full piece available for download.
Yemen — Houthi maritime blockade threatens Saudi shipping and Red Sea trade — risk level HIGH
Situation Update
Yemen’s Houthi movement has declared an immediate maritime blockade against Saudi Arabia, threatening vessels that load or discharge cargo at Saudi ports. The group said the measure was retaliation for what it describes as a longstanding Saudi blockade of Yemen and warned that any Saudi escalation would prompt a broader response. The announcement follows renewed Houthi missile launches towards Saudi territory, ending several years of relative calm under the informal truce established in 2022.
The Houthis subsequently sent warnings directly to shipping companies, stating that vessels calling at Saudi ports could face sanctions or targeting anywhere within the group’s operational reach. Two tankers carrying Saudi crude towards India and China altered course following the warning, demonstrating that the declaration is already influencing commercial behaviour even without a confirmed attack. Saudi Aramco has continued loading operations at Yanbu, although some vessels have reportedly taken additional security precautions.
US President Donald Trump has now warned that Washington would “take care of” the Houthis if the group attempts to enforce the blockade. Trump said the US had acted against the Houthis previously and could do so again. His statement raises the possibility of renewed US strikes against Houthi missile, drone, maritime and command infrastructure, transforming the dispute from a Saudi-Houthi confrontation into another potential front in the wider US-Iran conflict.
Assessment/Impact/Business Implications
The blockade threatens Saudi Arabia’s principal alternative export corridor at a time when disruption around the Strait of Hormuz has increased the strategic importance of Yanbu and the Red Sea. The Houthis are unlikely to enforce a complete closure of Bab al-Mandeb, but intermittent missile, drone, mine or uncrewed-vessel attacks could be sufficient to deter operators and increase war-risk premiums.
Trump’s warning materially increases escalation risk. Any Houthi attack on Saudi-linked shipping could now trigger US military action, followed by retaliation against Saudi, US or allied assets. Shipping companies may suspend Saudi port calls, tighten vessel-acceptance criteria or divert around the Cape of Good Hope.
Businesses should prepare for higher freight and insurance costs, route changes and short-notice disruption at Saudi Red Sea ports. The risk remains severe because maritime incidents could rapidly undermine Yemen’s fragile truce and expand the regional conflict.
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