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The Iran System | 2: The Shia Axis and the Machine the Old Order Built

Why this war feels sprawling, brutal, and hard to end and why that is inseparable from how the axis was made and managed by the old order

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Tanvi Ratna
Mar 27, 2026
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Author’s note:

This essay is Part II of The Iran System, a series on the Iran war and the systems it is forcing into alignment toward a new world order. Most coverage treats this as a conventional conflict—military escalation, diplomacy, and regional fallout. That framing misses what is actually happening.

This series maps the underlying systems—military, economic, and political—that were built, embedded, and stabilized under the old order, and explains how they are now being pressured simultaneously.

The previous essay introduced the three systems shaping the Middle East. This essay begins the first deep dive into one of them: the Shia axis—how it evolved into a distributed, embedded mesh across states through the decisions and blind spots of the old order, and why that system is now being forced to change.

1. The Hardest System to Break

The first mistake is to think this war begins with Iran in the conventional state sense or “Iran’s proxies” in the old counterterror frame.

It doesn’t.

It begins with the system Iran sits at the center of—the Shia axis: a network that runs from Tehran through Iraq and Syria into Lebanon, and outward into the Gulf and the Red Sea.

This system is not merely one state or a collection of militias. It does not sit outside the states it operates within, but runs through them

A system that absorbs pressure, shifts across borders, and continues to function even when parts of it are degraded. Pressure applied at one node transmits outward across all the others.

This essay starts there.

Because until you understand how the Shia axis was constructed—and why it was allowed to harden into this kind of system—nothing about this war, or the way it is being fought, will make sense.

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