By Sõzarn Barday
Beneath the visible machinery of diplomacy, military alliances, and geopolitical conflict lies another structure that increasingly shapes the modern world — the global financial system. It is through this system that money moves, debt is structured, sanctions are enforced, and economic power is distributed across borders.
Modern power does not operate only through armies or territory. It is embedded in financial architecture: banks, central banks, credit rating agencies, sovereign debt markets, reserve currencies, and international legal frameworks that govern trade and capital flows. Together, these systems determine which states can access capital, which economies can grow, and which remain constrained.
From Empire to Financial Infrastructure
At the height of the British Empire, Britain controlled nearly a quarter of global commerce. London emerged as the central node of international finance, where British banks dominated trade finance, marine insurance, and global lending. Access to capital became a decisive factor in industrialisation and state development.
Finance gradually became an extension of foreign policy.
Through lending, insurance, and credit conditions, powerful states and financial centres could reward allies and restrict adversaries. Economic influence became as significant as military capacity. Empire was sustained not only through military power, but through financial systems that structured global dependency.
Over time, this marked a broader shift in how global power operated — from territorial control to financial governance.
Central Banking and the Institutionalisation of Money
The instability of nineteenth and early twentieth-century banking systems led to repeated financial crises. In response, states began developing central banking systems designed to stabilise currency, regulate credit, and act as lenders of last resort during financial shocks.
The creation of central banks fundamentally changed the structure of the global economy. Monetary stability became institutionalised, and financial authority shifted from fragmented private banking networks toward coordinated systems of public monetary governance.
This evolution culminated in a global system where central banks, rather than private actors alone, play a decisive role in shaping credit conditions, inflation management, and financial stability.
International Law and the Governance of Finance
The modern financial system is not only economic — it is also legal.
International law provides the framework through which global finance operates. Treaties, sanctions regimes, trade agreements, and regulatory standards define how states and institutions interact within the global economy.
Following the Second World War, the Bretton Woods system established a new legal and institutional order for global finance. Institutions such as the International Monetary Fund and the World Bank were created to support monetary stability, development financing, and post-war reconstruction. Over time, these institutions became central actors in global economic governance.
Today, international financial law governs everything from sovereign debt restructuring to cross-border capital flows. States operate within a system where legal obligations, credit ratings, and compliance with international financial norms directly affect access to global markets.
Financial Power as Geopolitical Power
In the contemporary era, finance has become one of the most effective instruments of geopolitical influence.
Sanctions, asset freezes, banking restrictions, and exclusion from payment systems can isolate economies without direct military intervention. Financial measures are increasingly used to enforce international political objectives, reshape state behaviour, and exert pressure on governments.
This represents a form of economic governance that operates through legal and financial infrastructure rather than territorial control.
Iran and the Limits of Financial Integration
Iran illustrates how deeply modern states are embedded in global financial systems. Over the past decades, international sanctions and restrictions on Iranian banks have significantly limited the country’s access to global payment systems, trade finance, and foreign investment.
The exclusion of Iranian financial institutions from systems such as SWIFT highlighted how essential financial infrastructure has become to participation in the global economy.
In response, Iran has pursued alternative arrangements, including bilateral trade agreements in local currencies and closer financial coordination with states seeking to reduce reliance on dominant reserve currencies. These strategies reflect broader efforts by several countries to diversify financial dependencies and reduce exposure to sanctions-based pressure.
The Global South and Structural Financial Inequality
Across the Global South, questions of economic sovereignty remain central to debates on development and governance.
Many developing economies operate within a system shaped by external borrowing, currency volatility, and conditional lending. Institutions such as the International Monetary Fund and the World Bank continue to play significant roles in shaping fiscal and monetary policy in debtor states, particularly through loan conditions and structural adjustment frameworks.
At the same time, global credit markets and sovereign rating systems influence borrowing costs and investment flows, reinforcing asymmetries in access to capital.
These dynamics raise ongoing questions within international economic law about equity, sovereignty, and the distribution of financial power.
Conclusion: Law, Finance and Modern Power
The modern world is governed through an interlocking system of finance and law.
Monetary policy, international legal frameworks, and global financial institutions together form the architecture within which states operate. Power is no longer exercised solely through territorial control or military force, but through the regulation of access to capital, liquidity, and financial legitimacy.
The age of empire has not disappeared — it has been transformed into institutional form.
Today, sovereignty is increasingly shaped by participation in, or exclusion from, the global financial and legal order that governs the movement of money across borders.
Sõzarn Barday is a South African lawyer and author focusing on human rights, international law, and geopolitical events in the Middle East. The views expressed are her own.
