When Houthi forces began targeting commercial shipping in the southern Red Sea in November 2023, most initial assessments framed it as a temporary disruption — a political gesture that would either be suppressed by coalition naval action or lose momentum as the underlying Gaza conflict dynamics evolved. Two years later, with over 100 commercial vessels attacked, more than 80 engagements with US Navy ships recorded, and Suez Canal transits still running well below pre-crisis levels, the initial assessments look embarrassingly optimistic.
The Houthi campaign has not been suppressed. Operation Prosperity Guardian — the US-led naval coalition assembled with considerable diplomatic effort and rather less operational consensus — has interdicted significant numbers of incoming missiles and drones. The intercept numbers are genuinely impressive at a technical level. But interception is not deterrence, and the campaign's underlying strategic logic — that the threat of kinetic response would change Houthi behaviour — has been tested against reality and found wanting. A group that has demonstrated it will absorb US airstrikes, Royal Navy operations, and sustained coalition pressure without modifying its behaviour is not a group whose threat calculus will be changed by more of the same.
The numbers are stark. At the peak of the campaign in early 2024, Suez Canal transits dropped by approximately 60% compared to pre-crisis baseline. Insurance premiums on Red Sea routes increased by over 900%. The additional cost to global shipping from vessels rerouting via the Cape of Good Hope — adding approximately 10 to 14 days and 3,500 nautical miles to voyages between Asia and Europe — has been estimated at over $200 billion in cumulative additional costs through the end of 2025. For context, Egypt's annual Suez Canal revenue had been running at approximately $9 billion before the crisis; that revenue stream has been devastated in ways that create their own regional political pressures.
"When a group operating on an estimated $300m annual budget can effectively shut down one of the world's busiest shipping lanes, the old assumptions about asymmetric warfare no longer apply."
The Houthi annual budget is estimated at approximately $300 million — a figure that reflects Iranian support, domestic revenue from controlled Yemeni territory, and a lean operational structure that has deliberately avoided the cost-intensive capabilities that would make it a more conventional military target. Against this $300 million, the coalition response has cost several billion dollars in munitions expenditure alone, before accounting for the operational costs of sustained naval presence. The asymmetry is not incidental; it is the strategic logic of the entire enterprise.
The Gulf states have drawn specific and actionable procurement conclusions from the Houthi campaign. Coastal and maritime missile defence has seen the most direct impact. Counter-drone systems — directed energy weapons, kinetic intercept systems, electronic warfare — are all receiving accelerated procurement attention across the Gulf. Naval patrol capability has also seen renewed investment interest. The lesson that standoff precision weapons in the hands of non-state actors have fundamentally changed coastal security calculus is one that every Gulf procurement officer has now absorbed through direct observation rather than theoretical analysis. It has changed the conversation permanently.