Great Power Geopolitics

US sanctions on Iran and effects on global currency use

US sanctions on Iran and effects on global currency use

Sanctions, Iran, and De-dollarization

US Sanctions on Iran Accelerate the Shift Toward a Multipolar Global Financial System — Latest Developments and Implications

The ongoing US sanctions against Iran, originally aimed at curbing nuclear proliferation and regional influence, are now significantly reshaping the global financial landscape. Far from merely exerting economic pressure, these measures are acting as catalysts for a broader transformation: the erosion of dollar dominance and the emergence of a multipolar, technologically advanced monetary order. As Iran and other sanctioned or emerging economies innovate—through currency diversification, regional payment networks, digital currencies, and strategic alliances—the international financial system is entering a new era characterized by diversification, regionalism, and great-power competition.


Iran’s Strategic Responses: Diversification, Innovation, and Regional Alliances

In the face of increasingly stringent sanctions that have severed Iran from traditional Western financial channels, Iran has adopted a comprehensive strategy emphasizing resilience and autonomy:

  • Use of Alternative Currencies: Iran is increasingly conducting trade in euros, Chinese yuan, and local currencies via barter agreements. This approach reduces reliance on the US dollar, mitigating sanctions' impact and strengthening regional economic resilience. For instance, Iran’s trade with neighboring countries often involves direct currency exchanges or barter arrangements that sidestep Western-controlled systems.

  • Development of Regional Payment Systems: Iran has invested heavily in establishing and expanding regional financial infrastructure. It has forged partnerships with countries like Iraq, Syria, and Lebanon to develop platforms similar to INSTEX (Instrument in Support of Trade Exchanges), designed to facilitate cross-border trade outside Western banking channels. These systems enable sanctioned nations to continue trade—particularly in vital sectors like energy—without depending on dollar-dominated SWIFT networks, fostering regional economic independence.

  • Cryptocurrency and Blockchain Initiatives: Iran is pioneering its own digital currency experiments and deploying blockchain technology to facilitate cross-border payments. These decentralized channels offer resilience against sanctions and provide secure, traceable transaction pathways. Recent reports indicate Iran’s blockchain projects are serving as prototypes for broader use among sanctioned and emerging economies seeking alternatives to US-controlled networks.

  • Deeper Alliances with Russia and China: Iran’s strategic partnerships with major powers have intensified, featuring joint digital currency projects, currency swap agreements, and regional payment networks. These collaborations aim to forge a multipolar financial ecosystem that diminishes US influence and promotes regional financial independence, creating alternative avenues for trade and investment.


Economic and Security Ramifications

The impact of sanctions on Iran and the broader Middle East remains profound, with critical economic and security consequences:

  • Currency Collapse and Hyperinflation: The Iranian Rial has plummeted in value, with official exchange rates diverging sharply from black-market prices. This disparity fuels hyperinflation, erodes savings, and sparks social unrest—particularly among youth and the middle class.

  • Rising Inflation and Unemployment: Iran faces triple-digit inflation, soaring prices for essentials, and increasing unemployment, exacerbating economic hardship and social discontent.

  • Trade Disruptions and Revenue Losses: US sanctions have effectively cut Iran off from dollar-based financial channels, crippling vital oil exports, technology transfers, and trade. These measures have led to significant revenue declines and economic contraction.

  • Depletion of Reserves: Iran’s foreign exchange reserves are critically depleted, limiting its capacity to stabilize the economy or fund military and social programs, further fueling regional instability.

  • Escalation of Regional Security Tensions: Iran has increased military posturing, deploying advanced missile systems, expanding naval activity in the Persian Gulf, and engaging in provocative acts. Recent reports, including the viral video titled "US-Iran Tension Rises; China’s 600 Nuclear Warheads Draw Global Concern,", highlight how these tensions risk spiraling into broader conflicts, especially considering China’s substantial nuclear arsenal, which adds to regional insecurity and arms race fears.


Geopolitical Realignments and Diplomatic Initiatives

Amid these tensions, diplomatic efforts are shaping a new regional and global economic landscape:

  • Mediation by Gulf States: Countries such as Qatar and Oman are actively mediating between Iran and Western powers, seeking to de-escalate conflicts and facilitate economic normalization. These efforts aim to stabilize the region and open pathways for Iran’s reintegration into international markets.

  • Pragmatic Shifts by Saudi Arabia and UAE: Gulf nations are exploring partnerships that circumvent US sanctions, emphasizing regional cooperation and economic integration. The Institute for National Security Studies (INSS) notes Saudi Arabia’s pragmatic pivot toward normalization with Israel and other regional actors, further diversifying alliances and challenging traditional US dominance.

  • Potential for Sanction Easing: Diplomatic breakthroughs, such as renewed negotiations or confidence-building measures, could lead to Iran’s reintegration into regional financial networks and markets, further challenging dollar hegemony and reinforcing alternative monetary pathways.


Broader Context: Eurasian Security and Great-Power Competition

The post-Ukraine war geopolitical landscape underscores a deepening contest among great powers—notably Russia, China, Iran, and regional allies. This rivalry manifests through economic initiatives and security strategies designed to reduce dependence on Western-controlled institutions:

  • Joint Digital Currency Projects: Russia, China, and Iran are collaborating on digital currency initiatives aiming to establish alternative payment systems that bypass US-controlled networks, creating a resilient, multipolar financial infrastructure.

  • Regional Energy and Trade Networks: Countries are investing in regional energy corridors, pipelines, and trade routes—such as railways and pipelines—that circumvent Western infrastructure, bolstering regional sovereignty and economic independence.

  • Military Alliances and Strategic Partnerships: These alliances serve to buffer against sanctions and geopolitical pressures, reinforcing the shift toward regional self-sufficiency and sovereignty.

These dynamics signal a paradigm shift toward a multipolar order, where sovereignty and regional resilience become central to economic and security strategies.


Energy Markets and Sanctions Evasion Tactics

Sanctions and regional tensions continue to influence global energy markets:

  • Market Volatility: Escalations threaten to disrupt oil supplies, as Iran remains a significant energy actor. Conflicts in strategic regions like the Persian Gulf and Iran’s role as a key oil exporter contribute to price fluctuations.

  • Dark Shipping and Clandestine Export Channels: Countries and entities are increasingly employing clandestine methods—commonly called "dark shipping"—to evade sanctions and export oil. These covert operations, often involving ship obfuscation and layered routing, complicate enforcement efforts and can cause unexpected supply disruptions. The recent release of the "Energy Policy Now: When Oil Sanctions Meet Dark Shipping" video highlights how illicit trade routes undermine sanctions regimes and influence global oil prices.

  • Diversification of Energy Sources: Countries are actively developing regional energy infrastructure, exploring alternative trade routes, and seeking new energy partnerships to reduce dependence on Western-controlled energy corridors, further fostering regional cooperation.


The Future of Global Finance: Toward a Resilient, Multipolar System

Recent developments point toward a gradual decline in dollar dominance, driven by technological innovation and geopolitical shifts:

  • Digital Currencies and Blockchain: Iran’s digital currency projects exemplify a broader move toward decentralized monetary systems. Similar initiatives among other nations are gaining traction as they seek to escape US financial hegemony.

  • Regional Payment Systems and Currency Swap Agreements: China and Russia are expanding their currencies’ roles in international trade, establishing regional payment networks and swap arrangements that reduce reliance on the dollar.

  • Diplomatic and Geopolitical Dynamics: Mediation efforts by Gulf states and evolving regional alliances could facilitate Iran’s reintegration into regional financial networks, further challenging dollar dominance and fostering alternative monetary pathways.


Current Status and Recent Security Developments

In addition to economic factors, recent intelligence and military assessments underscore escalating security risks:

  • Israeli Military Assessments: Reports indicate that Israel’s army leaders are increasingly cautious about engaging in a new conflict with Iran. An Israeli army chief has privately warned about the potentially devastating costs of a war, highlighting concerns over regional stability, regional and global security, and the economic fallout. The assessment emphasizes that a new war could trigger widespread instability in energy markets, disrupt global supply chains, and accelerate financial decoupling from US-dominated systems.

  • Potential for Escalation: Heightened military posturing, combined with Iran’s regional activities, increases the risk of conflict escalation, which could further undermine already fragile markets and accelerate the shift toward alternative financial and energy networks.


Implications and Outlook

The confluence of sanctions, regional diplomacy, technological innovation, and great-power rivalry is steering the world toward a more diversified, resilient, and multipolar economic and security environment:

  • Emergence of Multiple Currencies: Digital currencies and regional payment systems are providing viable alternatives to dollar reliance, especially among sanctioned and emerging economies.

  • Regional Sovereignty: Infrastructure investments and alliances are fostering regional economic independence, reducing the influence of Western-controlled institutions.

  • Security Risks and Instability: Ongoing conflicts and military escalations, especially involving Iran and Israel, pose risks that could disrupt markets further and accelerate the decoupling process.

As recent developments demonstrate, US sanctions on Iran are unintentionally fueling a fundamental transformation—one driven by innovation, regional cooperation, and strategic rivalry—that could redefine the future of global finance and geopolitics. While this transition offers opportunities for diversification and resilience, it also introduces new layers of complexity, uncertainty, and risk that will shape the international order in the years ahead.

Sources (17)
Updated Feb 26, 2026