Iran war sits at the center of this dementia and brain health question.

When the United States and Israel launched military strikes against Iran on February 28, 2026, the impact rippled far beyond the Middle East. Global container shipping came to a near standstill in one of the world’s most critical maritime corridors—the Strait of Hormuz—a waterway through which roughly one-fifth of the world’s seaborne oil trade flows daily. Within weeks, container shipping rates had more than doubled, with routes like Asia-to-US West Coast jumping from $1,800–$2,200 per 40-foot container to above $4,500.

The disruption wasn’t limited to one chokepoint either; simultaneous instability in both the Strait of Hormuz and the Red Sea eliminated viable maritime alternatives, forcing ships to make costly detours around Africa and fundamentally reshaping global trade flows. The Iran conflict disrupted container shipping through three interconnected mechanisms: the direct closure of the Strait of Hormuz (which saw transits collapse from 120 daily to just 6.9—a 94.2% decline), the stranding of 170 containerships in the Persian Gulf unable to exit, and the subsequent attacks on commercial vessels that forced major carriers like Maersk, CMA CGM, and Hapag-Lloyd to suspend operations through the region entirely. This article examines how a regional military conflict triggered a global shipping crisis, the financial toll it imposed, and the longer-term implications for supply chains worldwide.

What Caused the Strait of Hormuz to Close During the Iran War?
How Did Container Shipping Rates Respond to the Conflict?
What Were the Security Incidents That Made the Region Dangerous?
Why Did Shipping Companies Reroute Around the Cape of Good Hope?
What Was the Impact on Global Oil and Energy Markets?
How Did the Air Cargo Industry Respond?
What Does the Global Supply Chain Look Like Going Forward?
Conclusion

What Caused the Strait of Hormuz to Close During the Iran War?

The Strait of Hormuz, a narrow waterway between iran and Oman, serves as the only maritime passage connecting the Persian Gulf to the open ocean. On February 28, 2026, following military strikes that targeted Iran’s critical infrastructure and leadership, the geopolitical situation deteriorated rapidly. Within days, the strait became functionally impassable for commercial shipping—not due to an official blockade, but due to a combination of direct Iranian military action, retaliatory strikes, and the sheer danger of operating in a war zone. By mid-March, the statistics were staggering. Windward AI, which tracks global vessel movements, reported that daily transits through the strait plummeted from an average of 120 (in both directions) to just 6.9—a collapse of 94.2 percent.

At any given time, approximately 170 containerships with a combined capacity of 450,000 TEU (twenty-foot equivalent units, the industry standard for measuring container volume) sat trapped in the Persian Gulf unable to leave safely. Another 150-plus vessels anchored outside the strait, their captains unwilling to risk entering the danger zone. The practical effect was that roughly 1.4 percent of the world’s entire container fleet became immobilized. The closure was particularly devastating because there was no gradual alternative. During the Red Sea crisis of 2023–2024, some shipping could be redirected through that corridor. But in the Iran conflict of 2026, both the Strait of Hormuz and the Red Sea became simultaneously unstable—a dual-chokepoint crisis with no viable workarounds for weeks. Vessels couldn’t go through Hormuz, couldn’t reliably transit the Red Sea, and faced no good options other than the six-week detour around the Cape of Good Hope.

What Caused the Strait of Hormuz to Close During the Iran War?

How Did Container Shipping Rates Respond to the Conflict?

The disruption hit shipping rates with explosive speed. Spot rates—the instantaneous market price for moving a single container—jumped approximately 150 percent in the first weeks following the February 28 conflict start. On the heavily trafficked Asia-to-US West Coast route, prices surged from a typical pre-conflict range of $1,800–$2,200 per 40-foot container to above $4,500. For perspective, that’s roughly the equivalent of doubling or tripling the cost of moving goods across the Pacific. But spot rates tell only part of the story. Major carriers layered on additional war risk surcharges on top of published rates.

Hapag-Lloyd, one of the world’s largest container lines, levied $1,500 per 20-foot container and $3,500 for refrigerated reefer containers on affected routes. These weren’t one-time charges—they were ongoing premiums imposed because vessels navigating the region faced active military threats. Smaller carriers imposed their own surcharges ranging from $500 to $2,700 per container depending on the specific route and risk assessment. However, it’s important to note that not all shippers faced identical price increases. Those with long-term contracts negotiated before the conflict often paid significantly less than spot-market shippers, creating a two-tiered system where smaller companies and those purchasing on the open market bore the brunt of the crisis. Conversely, carriers operating on routes that didn’t depend on Hormuz transits—such as intra-Asia regional shipping—saw more modest rate increases, illustrating that the crisis was geographically concentrated rather than uniform.

What Were the Security Incidents That Made the Region Dangerous?

Beyond the geopolitical instability, commercial shipping in the region faced direct military threats. Windward AI documented at least 21 commercial vessels hit by hostile fire or incidents since the conflict began. An additional 20 confirmed maritime security incidents occurred across the Northern Arabian Gulf, Strait of Hormuz, and Gulf of Oman, ranging from attacks to warning shots to vessels being deliberately targeted by unknown actors. These weren’t hypothetical risks—they were documented incidents affecting real ships and crew members. The danger extended even to vessels’ electronic navigation systems.

over 1,650 vessels experienced GPS and AIS (Automatic Identification System) disruption in the second week of the conflict alone, likely due to electronic warfare, jamming, or spoofing. When a ship loses reliable GPS and AIS, navigation becomes exponentially more dangerous, and the vessel’s position becomes invisible to other ships and port authorities. For commercial captains operating in a conflict zone with hostile forces present, GPS disruption essentially made safe passage impossible. These security incidents weren’t abstract concerns—they directly justified the carrier surcharges and route avoidance. No shipping company could operate through Hormuz and the surrounding waters without factoring in the real probability of vessel damage, crew injury, or total loss. Insurance premiums for vessels transiting the region also spiked, adding another cost layer on top of fuel surcharges and war risk fees.

What Were the Security Incidents That Made the Region Dangerous?

Why Did Shipping Companies Reroute Around the Cape of Good Hope?

For many vessels stuck in or avoiding the Strait of Hormuz, the alternative was a dramatic reroute around the southern tip of Africa—the Cape of Good Hope. This route adds approximately 6,000 additional nautical miles and takes roughly three additional weeks compared to the Suez Canal and Strait of Hormuz path. While the longer route ensured safety, it came at an enormous economic cost. Each additional round trip via the Cape of Good Hope added more than $1 million in fuel costs per vessel, according to analysis from The Middle East Insider. A modern containership might consume 50-100 tons of fuel per day, depending on speed and size. Multiplying that daily burn rate by the additional 21 days at sea yields substantial fuel bills.

Beyond fuel, the longer voyage meant higher crew costs, additional port fees, and delayed cargo arrivals that disrupted schedules and created ripple effects across supply chains. For perishable goods—seafood, produce, flowers, pharmaceuticals—the three-week delay wasn’t merely expensive; it could render the entire shipment unsalable. A container of fresh raspberries doesn’t retain value for 21 extra days at sea. Pharmaceutical shipments might exceed their temperature stability windows. This meant certain time-sensitive cargoes either had to shift to air freight (at dramatically higher costs) or be abandoned entirely. The Cape route worked for durable goods like electronics, textiles, and machinery, but for temperature-sensitive or time-critical shipments, it offered no viable solution.

What Was the Impact on Global Oil and Energy Markets?

The disruption to shipping wasn’t confined to containerized goods—it extended to the energy markets themselves. The Strait of Hormuz handles approximately 20 million barrels of crude oil and condensate per day, representing about 20 percent of all seaborne oil trade globally. That crude powers refineries, petrochemical plants, and heating systems across Europe, Asia, and beyond. When the strait closed, Middle East loadings of crude and condensate plummeted. By March 15, 2026, exportable loadings from Persian Gulf ports had fallen 62 percent week-on-week, down to just 4.6 million barrels per day. That represented a loss of roughly 15 million barrels daily from the supply chain—an amount that would have powered a small nation.

Oil prices responded immediately. Brent crude, the global benchmark, rose from around $78 per barrel to above $110 per barrel in the immediate aftermath of the conflict start, with analysts warning that sustained disruptions could keep prices at $100 or higher for months. The energy crisis had secondary effects throughout the supply chain. Higher oil prices increased transportation costs for all goods, not just those using ocean shipping. They raised electricity costs, heating costs, and the cost of oil-derived materials like plastics, fertilizers, and chemical inputs. Companies dependent on stable energy pricing saw their margins compress. For consumers, higher oil prices eventually translated to higher prices at the pump and for goods that depend on petrochemicals.

What Was the Impact on Global Oil and Energy Markets?

How Did the Air Cargo Industry Respond?

As ocean shipping became prohibitively expensive and time-consuming, some shippers pivoted to air freight. However, air cargo capacity in the Middle East and South Asia—a crucial transshipment hub for goods moving between Asia and the Western world—had declined by 48 percent year-on-year as of mid-March 2026. This decline reflected carriers diverting capacity away from unstable regions, spare aircraft grounded due to fuel costs, and general contraction in air cargo demand post-COVID. The combination meant that when ocean shipping failed, the air freight alternative was already depleted.

For urgent shipments, air freight rates skyrocketed. What might normally cost $15–20 per kilogram could spike to $50–100 per kilogram or more, pricing all but the most high-value, time-critical goods out of the market. Electronics manufacturers, luxury goods companies, and pharmaceutical firms scrambled to secure air capacity, but demand far outstripped available supply. The result was a bottleneck in a secondary transport mode, confirming that the crisis couldn’t be worked around using traditional contingency methods.

What Does the Global Supply Chain Look Like Going Forward?

The Iran conflict exposed a critical vulnerability in global supply chains: over-reliance on a handful of maritime chokepoints. For decades, the Strait of Hormuz and Suez Canal have been taken for granted as reliable conduits for global trade. The events of 2026 demonstrated that both could be disrupted simultaneously, leaving no viable alternative. Looking forward, companies and governments are likely to reconsider supply chain architecture, potentially regionalizing certain industries, building strategic reserves, or diversifying sourcing to avoid single-point-of-failure dependencies on these critical waterways.

The longer-term implications include potential shifts in where goods are manufactured, stored, and distributed. Some companies may reconsider offshoring production to Asia if the cost of shipping goods back to Western markets becomes permanently elevated. Others may invest in onshore or nearshore manufacturing to reduce transportation dependency. Port authorities are also likely to invest in capacity upgrades in alternative corridors—developing shipping routes through newer infrastructure in Africa or Southeast Asia to provide redundancy. The crisis of 2026 will almost certainly reshape global trade patterns for the next decade, with companies learning to build more resilience into their supply chains at the expense of pure cost optimization.

Conclusion

The Iran War disrupted global container shipping through a combination of direct military action, the functional closure of the Strait of Hormuz, and the simultaneous instability of alternative routes. In the span of weeks, container shipping rates doubled, 170 vessels became trapped in the Persian Gulf, and global energy prices spiked as 20 million barrels of daily oil shipments were cut off from markets. The crisis illustrated that modern global supply chains, despite their sophistication, remain vulnerable to geopolitical shocks in critical maritime corridors.

The ripple effects extended from shipping rates to consumer prices, from energy markets to air freight capacity, and from perishable goods supply to strategic petroleum reserves. For businesses, the crisis underscored the importance of supply chain resilience and diversification. For governments and port authorities, it highlighted the need to develop and maintain redundant shipping routes and strategic reserves. The events of 2026 represent a watershed moment in global trade, one that will likely accelerate the reshoring of certain industries, reshape manufacturing geography, and force policymakers to rethink the concentration of global commerce through a handful of critical waterways.