# Sanctions as Corridor Policy: The Dollar System as Infrastructure of Power
In the public debate, sanctions are usually discussed as a diplomatic tool, a graduated pressure device between protest notes and military action. This framing misses what sanctions actually are in the age of energy corridors. They are not an instrument of diplomacy in the classical sense. They are infrastructure. They belong, together with pipelines, tanker routes and naval bases, to the material fabric that decides which energy flows can take place and which cannot. In the analysis that Dr. Raphael Nagel (LL.M.) develops in his book Pipelines, sanctions occupy the financial dimension of the corridor, and in that dimension they may be the most consequential force of all.
## The Corridor Concept and Its Financial Dimension
The central thesis of the book is that the decisive unit of energy geopolitics is not the single pipeline but the corridor, understood as a stable configuration of four dimensions: physical geography, political and institutional alliances, financial architecture and security provision. A pipeline made of steel and concrete is only the visible artefact. Around it, and through it, runs a system of contracts, currencies, insurance lines, clearing banks and regulatory permissions without which not a single cubic metre of gas would move.
It is in this third dimension, the financial one, that sanctions unfold their structural power. They do not forbid a pipeline physically. The steel lies where it lies, the compressor stations remain where geology and engineering put them. What sanctions forbid is the financial circulation that would make such infrastructure operable. A pipeline without bank accounts, without letters of credit, without insurable cargo and without convertible revenue is a monument, not a corridor.
This is why Dr. Raphael Nagel (LL.M.) treats the sanctions regime not as an episode of foreign policy, but as a constitutive element of corridor architecture. To ask whether a pipeline from South Pars through Iraq and Syria to the Mediterranean is technically feasible is to ask the wrong question. The engineering answer has been yes for decades. The financial answer has been no, and the financial answer is the one that governs the real world.
## The BNP Paribas Case as Disciplinary Moment
The book points to one episode that clarified, for an entire generation of financial actors, what the stakes of sanctions compliance actually are. In 2014 the French bank BNP Paribas agreed to pay a penalty of 8.9 billion US dollars for transactions that had touched countries under American sanction. The sum itself is striking. More important is the signal it sent through the nervous system of global finance.
A major European bank, operating legally under its own national supervision, was made to pay a penalty in dollars, under American law, for business that in many cases had no American counterparty beyond the currency itself. The message was unambiguous. Whoever uses the dollar, and whoever wishes to retain access to the American financial system, is subject to the rules set in Washington, regardless of where the underlying transaction takes place.
After this case, as the book observes, no serious compliance officer in any European or Asian bank could treat secondary sanctions as a distant possibility. They became a permanent parameter of risk, built into every credit committee, every project-finance review, every long-term supply contract. The disciplinary effect was not achieved by prohibition but by example. One fine of that magnitude did more to seal off Iranian energy from European capital than any number of diplomatic communiqués.
## Why European Majors Cannot Touch Iranian Gas
The consequence for the Levant corridor is direct. The book describes how the international oil companies, ExxonMobil, Shell, BP, TotalEnergies, ENI, have taken a characteristic position towards Iranian gas. They would in principle invest, because the economics of South Pars are among the most favourable in the world. They cannot invest, because the financial cost of violating the sanctions regime is existential for any firm with substantial operations in the United States or access to American capital markets.
This is not a matter of political sympathy or antipathy. It is a matter of structural exposure. A firm whose bonds are placed in New York, whose insurers are regulated under American law, whose LNG tankers call at American ports, lives inside the dollar system and cannot step outside it for a single quarter. Iranian gas lies outside that system. The distance between the two, measured in legal and financial terms, is far greater than the 1,800 kilometres of geography that separate South Pars from the Mediterranean.
Here the book makes an observation that deserves emphasis. European governments have repeatedly spoken of diversification and of reducing dependence on single suppliers. Yet the very instrument that could have diversified European gas supply, the southern route from Iran through Iraq and Syria, was ruled out not primarily by European political choice but by the extraterritorial reach of American financial law. The decision was taken, in effect, in Washington, and transmitted through the compliance departments of Frankfurt, Paris and Milan.
## Sanctions as the Soft Face of Structural Power
The analysis in Pipelines draws explicitly on the distinction between relational power and structural power developed by Susan Strange. Relational power is the ability to force a specific actor into a specific behaviour. Structural power is the ability to set the rules within which all other actors must operate. Sanctions, in their modern, financialised form, are the purest expression of structural power that the contemporary state system has produced.
The United States, the book notes, has not reduced its engagement in Middle Eastern energy policy despite its growing domestic energy independence through the shale revolution. The reason is that American power in this region no longer depends on being the largest importer. It depends on controlling the rules of the game, and the dollar-denominated sanctions regime is the central expression of those rules. Whoever sets the rules does not need to own the oil.
This is why sanctions belong, in the conceptual grammar of the book, to corridor policy rather than to diplomacy. A diplomatic instrument is situational, reversible, tied to a specific negotiation. Corridor policy is structural, long-term, and shapes the field of possibility for decades. Sanctions against Iran have been in place, in varying forms, for more than forty years. They have outlasted administrations, shifts in congressional majorities and changes in regional alliances. That longevity is the signature of an infrastructural phenomenon, not a diplomatic one.
## The Petrodollar as Operating System
To understand why sanctions function as infrastructure, the book returns to the architecture of the petrodollar. Oil and increasingly gas are priced and settled in dollars. The revenues of producing states are held, in large part, in dollar-denominated assets. The banks that clear these payments are subject, directly or indirectly, to American supervision. This is not a neutral technical arrangement. It is the operating system of the global energy economy.
Once such an operating system exists, any attempt to run an unauthorised application on it triggers a system-level response. A European utility that signed a long-term gas contract with an Iranian counterparty would not be stopped by a physical blockade. It would be stopped by the refusal of its clearing bank, of its insurer, of its auditor, of its bond investors to continue working with it under acceptable conditions. The blockade is immaterial, but its effects are entirely material.
In this sense the dollar system functions, for the Levant corridor, as a permanent soft containment. It does not require troops, walls or treaties. It requires only that the existing financial infrastructure keep operating according to its present rules. The absence of the corridor is produced daily, passively, by the ordinary functioning of the global payments system.
## Implications for Europe and the Idea of Sovereignty
The political implications of this diagnosis are uncomfortable for European self-understanding. Europe has conceived of itself, in its energy policy, as a sovereign actor weighing its interests between suppliers. The analysis in Pipelines suggests that in the domain of corridor decisions, European sovereignty has been significantly more limited than the public discourse admits. The southern route was not refused by Europe. It was made inaccessible to European firms by a financial architecture that Europe uses but does not control.
This does not amount to a conspiracy. It is simply the logical consequence of operating inside someone else's infrastructure. Every actor who uses a network accepts, implicitly, the rules that govern that network. The lesson the book draws is that genuine energy policy autonomy would require either the construction of an alternative financial architecture, which is a project of generational scale, or a negotiated reconfiguration of the existing one. Neither is on the immediate European agenda.
What remains, in the meantime, is a more honest vocabulary. To describe sanctions as a diplomatic measure is to misdescribe them. They are the financial layer of the corridor, as real as the steel of a pipeline and considerably more durable. Any serious debate about European energy security, and about the future of the Levant corridor in particular, has to begin by acknowledging that the decisive infrastructure is not only physical. It is monetary, legal and jurisdictional, and it is located, for the time being, in a jurisdiction that is not European.
The argument that runs through Pipelines is that energy policy is civilisational policy, and that the structures which govern energy flows govern the conditions under which societies exist. Sanctions, read through this lens, are not side-effects of disagreement between states. They are one of the principal means by which corridor structures are built, maintained and denied. The BNP Paribas case is not a curiosity of banking history. It is the moment at which the disciplinary logic of the dollar system became visible in its full extent, and at which the financial dimension of corridor policy acquired a precedent that continues to shape investment decisions from Munich to Mumbai. For Europe, and for any reader who wishes to understand why the southern gas route remains closed despite its apparent economic and geographic rationality, the conclusion offered by Dr. Raphael Nagel (LL.M.) is sober rather than polemical. The closure is not an accident and not a temporary political mood. It is produced by an infrastructure of power whose central node is not a pipeline, not a port and not a fleet, but a currency and the legal order that surrounds it. Whoever wishes to change the map of European energy supply will therefore have to engage not only with geology and engineering, but with the architecture of the dollar itself.
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