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The Iran System | 6: Iran and the Reordering of Global Corridors

Why this war is not just closing routes, but selecting which ones the emerging order will permit to endure

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Tanvi Ratna
Apr 03, 2026
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This essay is Part VI of The Iran System, a series on the Iran war and the systems it is forcing into alignment toward a new world order. The previous essay followed the Red Sea front through Bab el-Mandeb and into the political geography of the Horn of Africa, showing how pressure at one maritime chokepoint transmits across ports, states, and domestic theaters far beyond the battlefield itself. This essay turns to the broader economic map beneath that escalation: the corridor system linking China, Russia, India, the Gulf, and Europe. The question here is not simply what the war is disrupting. It is which routes, nodes, and logistical architectures can still function once instability is no longer managed, but allowed to force a choice.

Operation Epic Fury and Roaring Lion, launched February 28, 2026, didn’t merely strike Iranian command nodes. They severed the physical arteries linking Eurasia to the Global South, forcing every major player to recalculate where freight will flow next decade.

This essay maps that transformation. The International North-South Transport Corridor dies. The India-Middle East-Europe Economic Corridor lives. Berbera emerges as a new Red Sea fulcrum. Russia and China confront incentives pointing toward Trump’s proprietary geography. $2 trillion in Middle Eastern economic flows hang in the balance.

What is being reordered is not simply trade, but the structure through which trade is allowed to move. Maritime routes through Hormuz carried the bulk of flows, while land corridors through Iran and Central Asia expanded quietly alongside them.

Iran sat inside that system as a hinge. The Belt and Road’s southern rail corridor passed through its territory toward Turkey and Europe. The International North South Transport Corridor depended on its ports and rail links to connect Russia to India. At the same time, the Strait of Hormuz anchored global maritime energy flows at its southern edge.

All these systems overlapped through Iran.

That overlap is what allowed redundancy to function. Pressure in one domain could be absorbed by movement across another. Conflict was contained and did not introduce fragility. This structure depended on Iran remaining stable enough for maritime, rail and road routes to operate simultaneously.

INSTC: The Eurasian Corridor, Dismantled

Russia, Iran, and India signed the International North-South Transport Corridor agreement in 2000. Picture a 7,200-kilometer network running from St. Petersburg’s container terminals to Mumbai’s Mundra port. Rail lines through Azerbaijan. Caspian Sea ferries for the water crossing. Bandar Abbas as the Persian Gulf pivot.

By 2025, it moved 15 million tons annually: Russian grain reaching African markets, Iranian transit fees sustaining regional influence, India enjoying 40 percent faster journeys than Suez routes at one-third the cost per voyage. The target was 50 million tons by 2030, a sanctions-proof hedge against American financial dominance.

That system rested on stable Iranian infrastructure. Epic Fury shattered it.

Strikes beginning February 28 systematically degraded Iran’s logistics backbone. Bandar Abbas saw tanker traffic collapse by 86 percent within days, leaving 700 vessels anchored offshore as insurers priced war risk at quarter-million-dollar premia per transit. Caspian ferries halted non-essential operations after missile alerts over Baku forced Azerbaijan to suspend crossings.

Upstream rail segments from St. Petersburg limped along at reduced capacity, but with no onward path they fed what analysts now call a Caspian cul-de-sac. The March 18 South Pars strikes knocked twelve percent of Iran’s gas production offline. Domestic blackouts cascaded through industrial zones, idling port labor and shuttering warehouses.

Operation Epic Fury has shattered the economic viability of the INSTC corridor.

Russia’s two-billion-dollar investment in the Rasht-Astara rail link now stands idle, serving ghost trains that terminate amid the militarized Gulf of Oman. Indian importers at Mundra redirect to alternative sources. What began as a sanctions-proof Eurasian hedge ends not through diplomacy but through physics—precision munitions exposing the fragility of overland ambitions dependent on a single unstable node.

The collapse of INSTC does more than remove one corridor. It removes one of the three systems that had allowed Eurasian trade to balance across land and sea. What replaces it is not a new equilibrium, but a forced reallocation across the remaining ones.

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