The Houthi Red Sea Campaign: Shipping, Geopolitics, and Escalation
How Yemen's Houthi movement disrupted global trade and reshaped Middle Eastern security
Since late 2023, Houthi forces in Yemen have attacked commercial shipping in the Red Sea and Gulf of Aden, disrupting one of the world's busiest trade routes. This article explains who the Houthis are, why they are attacking ships, how the international community has responded, and what the long-term consequences are.
Background: The Houthi movement
The Houthis, formally known as Ansar Allah, emerged in the 1990s as a Zaidi Shia revivalist movement in northern Yemen. After years of intermittent conflict with the Yemeni government, they seized the capital Sana'a in 2014, triggering a Saudi-led military intervention that has continued in various forms since 2015. Iran provides political support, weapons, and technology, though the Houthis maintain significant operational independence.
Military capabilities
The Houthis have developed a surprisingly advanced arsenal, including ballistic missiles, cruise missiles, and one-way attack drones. They have also acquired anti-ship ballistic missiles (ASBMs), making them one of the few non-state actors capable of threatening naval vessels at long range. Iranian technology transfers have been critical to these capabilities.
Political goals
The Houthis frame their Red Sea attacks as solidarity with Palestinians in Gaza. Domestically, the campaign has boosted their legitimacy and recruitment. Strategically, the attacks also serve to demonstrate their value as an Iranian proxy capable of disrupting Western interests far from Yemen's borders.
The Red Sea shipping crisis
Starting in November 2023, the Houthis began attacking commercial vessels transiting the Bab el-Mandeb strait, one of the world's key shipping chokepoints. Approximately 12-15 percent of global trade normally passes through this corridor, including a significant share of Europe-bound container traffic and energy shipments.
Scale of disruption
By early 2026, the Houthis have launched over 200 attacks on commercial and military vessels. Major shipping lines — including Maersk, MSC, and Hapag-Lloyd — have rerouted vessels around the Cape of Good Hope, adding 10-14 days and significant fuel costs to Europe-Asia routes. Insurance premiums for Red Sea transits have increased tenfold.
Economic impact
The rerouting has added an estimated $1-2 million per voyage in fuel and insurance costs. Suez Canal revenues for Egypt dropped by over 50 percent in 2024 and have only partially recovered. Port congestion in Southeast Asia and Northern Europe has worsened due to schedule disruptions.
International military response
The US and UK launched Operation Prosperity Guardian in December 2023, assembling a naval coalition to protect shipping and conduct strikes against Houthi launch sites in Yemen. The EU followed with Operation EUNAVFOR Aspides in early 2024, focused on defensive escort missions. Despite these efforts, the Houthis have continued attacks, demonstrating the difficulty of defending a long shipping corridor against asymmetric threats.
Why the crisis persists
Several factors make the Red Sea crisis difficult to resolve. The Houthis operate from dispersed, mobile launch sites that are hard to target. International strikes have degraded but not eliminated their capabilities. A diplomatic solution would require progress on the Gaza conflict (the Houthis' stated reason for attacks) and a broader Yemen peace deal, both of which remain distant. Meanwhile, the Houthis face no domestic political cost for the campaign — attacks on distant ships are popular at home and cost little compared to the economic damage they inflict.
Frequently asked questions
Sources and further reading
Authoritative external sources for deeper context
UN Panel of Experts on Yemen - Reports
United Nations
CSIS - Red Sea Shipping Crisis Tracker
CSIS
Lloyd's List - Red Sea Shipping Impact
Lloyd's List
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