The landscape of global conflict is rapidly evolving, particularly since the end of the Cold War. Events like the post-9/11 era and the financial upheaval of 2008 have accelerated this transformation, ushering in a new paradigm where traditional military engagements are increasingly replaced by economic warfare. However, economic warfare often operates in a murky grey zone, lacking clear declarations or endpoints.

Traditional warfare was visible, loud, and bloody. It involved the use of bullets, bombs, missiles, tanks, ships, and soldiers, with the goal of destroying enemy forces, infrastructure, or territory. It had defined thresholds, including declarations of war, ceasefire treaties, peace agreements, and mechanisms for accountability regarding war crimes.

In contrast, economic warfare exists in a grey area, typically without a formal “start” or “end.” Actions such as freezing central bank assets or imposing bans on high-tech exports can occur overnight, escalate gradually, and be lifted as bargaining chips. This ambiguity complicates the ability of domestic populations and international bodies to demand proportionality or judicial review.

Examples of conventional warfare include World Wars I and II, the Vietnam War, the Iran–Iraq War, the Gulf War of 1991, and the early stages of the wars in Afghanistan and Iraq. These conflicts utilized conventional weapons to inflict pain and damage on the enemy.

Conversely, economic means—such as trade restrictions, sanctions, tariffs, currency manipulation, asset freezes, investment controls, and supply chain weaponization—are becoming prevalent strategies to weaken or defeat adversaries without engaging in direct, large-scale combat. This form of conflict can have a more profound impact than even the most advanced weaponry, as economic pressures can reach far and wide, often with no clear trajectory, resembling a new version of the Cold War.

While the original Cold War was characterized by ideological blocs and proxy battles, today’s multipolar economic warfare is more fragmented. Economic warfare has evolved into a stealthier, more pervasive tool than kinetic strikes, reshaping global power dynamics in ways that the original Cold War never anticipated. Though it may seem hyperbolic to compare it to a new version of the Cold War, the economic damage inflicted can indeed be more extensive than that caused by any projectile.

A tariff or visa ban lacks a radar signature; there is no missile defense against a sudden ban on dual-use machine tool exports. The defense lies in resilience—through stockpiles and alternative suppliers—or deterrence, by holding critical assets that the adversary needs. Unlike missiles, which can be intercepted, tariffs and export bans operate at the speed of bureaucracy and policy decisions.

The reach of economic warfare can exceed that of hypersonic missiles. For instance, U.S. sanctions on Russia following the 2022 invasion of Ukraine froze over $300 billion in assets, spiked global energy prices, and indirectly threatened food security in Africa due to fertilizer shortages. Similarly, U.S. measures against Iran since 2018, including sanctions and an oil export ban, resulted in a 90% reduction in oil exports, forcing Tehran to barter with China and causing a ripple effect of higher global LNG prices.

Economic warfare is often characterized as invisible, deniable, and continuous, making it difficult to intervene through legal sanctions. This form of warfare has a serious and widespread impact on civilians in distant locations who bear no responsibility. Such actions may be classified as either legal or extralegal, yet their effects are immensely powerful, capable of reaching long-range targets more swiftly than supersonic missiles and causing more damage than cluster bombs.

Weaponizing interdependence by disrupting supply chains and dismantling interconnected financial systems and energy flows has become a strategy for exploiting vulnerabilities, creating existential risks. Economic warfare now serves as the next-best option for coercion below the nuclear threshold. Since 2008 (and more clearly after 2014 and 2022), rivals such as Russia and China have developed counter-weaponization tools—such as foreign currency reserves, SWIFT alternatives, and commodity leverage—indicating a need to revise the old playbook.

A tariff hike or asset freeze can be framed as measures for “national security” or “anti-money laundering,” rather than acts of war, even though they can have more severe consequences than conventional physical conflict. Unlike a bombing campaign that has a defined end, sanctions can persist for decades, as seen in the cases of Iraq in the 1990s and ongoing measures against Iran and Russia since 2014.

The legality of such actions is often ambiguous. They may technically fall under WTO exceptions (such as the GATT Article XXI security exemption) or UN Charter Article 41 (sanctions), yet they can also be unilateral and extralegal. The financial contagion effect means that sanctions on a Russian bank can disrupt grain shipping insurance, leading to increased food prices in places like Cairo or Nairobi. This collateral damage occurs without the use of bombs, and its impacts can be far-reaching because they are non-kinetic.

The spillover effects are significant: sanctioning a Russian bank can disrupt grain and fertilizer supply chains, raising food prices in Africa and the Middle East, while targeting Chinese tech firms can disrupt global semiconductor production, affecting automakers in Germany and electronics assemblers in Vietnam. Unlike traditional battlefields where civilians can flee, the collateral damage of economic warfare is embedded in globalized systems and often impacts neutral or uninvolved countries the hardest.

In an era where nuclear deterrence has made direct great-power conflict seem suicidal, states have shifted to subtler instruments of coercion. Economic warfare—comprising sanctions, trade barriers, currency manipulation, and supply-chain disruptions—has emerged as the weapon of choice, inflicting strategic pain without the need for military action.

This transition from kinetic warfare to economic pressure represents a profound evolution in great-power competition, blending statecraft with market forces. It is war by other means, yet lacks the oversight typically associated with traditional military engagements. The new norm suggests that conflicts are increasingly waged through economic means rather than conventional military actions.

Nuclear-armed states (Russia, China, and the U.S.) are less likely to engage in direct conflict, yet they readily utilize economic tools to inflict pain—actions that, in a pre-nuclear era, might have prompted airstrikes or blockades. This creates a dangerous stability/instability paradox: while direct clashes are reduced, low-intensity economic conflict persists, undermining global governance.

Economic warfare now occupies a space below conventional warfare but above diplomacy, highlighting the complex dynamics of modern international relations.

The transition from kinetic warfare to economic coercion represents a significant evolution in great-power competition, merging statecraft with market forces. Traditional warfare involved symmetric force (such as tanks facing tanks) with clear frontlines and oversight from the Geneva Conventions. In contrast, economic warfare exploits the vulnerabilities of globalization by targeting interdependence. It is warfare by other means, yet lacks established rules for oversight. This serves as a humble call for world leaders to convene and create mechanisms to address this hidden threat.

This new form of conflict employs tools like sanctions, trade restrictions, and currency manipulation to exert pressure on adversaries without direct military action. The implications of these strategies are profound, causing damage that often extends beyond immediate targets, affecting civilian populations and destabilizing regions in ways that conventional weapons cannot. Is it too much to suggest that this constitutes a subtle world war?

The absence of robust rules and oversight mechanisms in economic warfare heightens risks to global stability, as tools such as sanctions and financial restrictions can operate more swiftly and broadly than traditional military actions. World leaders must prioritize multilateral dialogue to establish binding frameworks that ensure accountability and proportionality. The evolution of economic warfare signifies not just a tactical shift but a fundamental change in the nature of international relations.