Iran’s Warning Signals a Wider Economic War—and a Risky Regional Escalation

Iran’s warning that countries joining the United States’ “economic war” would be treated as enemies marked a significant widening of the conflict. Tehran was no longer addressing only Washington’s sanctions policy; it was trying to deter neighboring governments, financial institutions and trading partners from helping enforce Iran’s isolation.

That warning came as President Donald Trump threatened “tremendous economic consequences” for countries doing business with Iran, and Treasury Secretary Scott Bessent promised what he called the “toughest sanctions in history.” 12 The result is a confrontation increasingly fought through trade access, oil exports, financial networks and maritime routes as well as military force.

Washington is trying to turn Iran’s trading relationships into liabilities

The US campaign relies on more than restrictions aimed directly at Iranian entities. Bessent has warned that Washington could impose secondary sanctions on financial institutions and other businesses that continue dealing with Tehran, describing the planned economic pressure as the financial equivalent of military action. 6

That approach creates a choice for countries trading with Iran: preserve commercial relationships with Tehran or risk losing access to the US-led financial system. Bessent has urged other countries to join a coordinated effort to isolate Iran, while the administration has not yet publicly detailed every measure it plans to impose. 7811

This explains why Tehran’s warning focused on neighboring states. Iran was attempting to raise the cost of compliance with Washington’s campaign by warning that economic cooperation with the United States could make those countries targets of Iranian retaliation.

The UAE shows how military escalation can accelerate economic isolation

The United Arab Emirates’ decision to suspend financial and economic transactions with Iran until further notice illustrated the dynamic Tehran is trying to prevent. Reuters reported that the UAE linked the move to renewed military escalation and a missile threat from Iran. 3

The UAE’s action does not prove that every regional government will adopt the same position. It does show, however, how security concerns can quickly become commercial restrictions. Threats to neighboring states may be intended to deter them, but they can also encourage governments and businesses to distance themselves from Iran to reduce their exposure to conflict and sanctions.

That creates a feedback loop:

1. Washington increases sanctions and pressures third countries to comply.
2. Tehran threatens retaliation against states that participate.
3. Regional governments restrict ties with Iran because of the security and financial risks.
4. Iran faces deeper isolation and may respond with further military or maritime pressure.

Iran’s economic warnings reveal vulnerability behind the threats

Iranian officials have acknowledged that the economic costs of the conflict are becoming harder to absorb. President Masoud Pezeshkian said the war had created financial constraints and complicated imports and exports, while warning that the government was struggling to meet some obligations. 21

Parliament Speaker Mohammad Bagher Ghalibaf similarly warned that military strength would mean little if people were hungry and the economy lacked financial circulation, domestic production and growth. 2025 The Institute for the Study of War reported that Iranian officials responsible for managing the economy were increasingly warning that worsening pressure could threaten regime stability, even as some senior officials continued to oppose concessions. 23

The contradiction is central to Tehran’s position. Iran needs to demonstrate that economic pressure will not force surrender, but its own officials are signaling that prolonged economic disruption could threaten the government’s ability to sustain the war. The warnings therefore reflect resolve and vulnerability at the same time.

China is the most important limit on Washington’s leverage

China remains the key potential outlet for Iranian oil. Reuters reported that China buys more than 80% of Iran’s shipped oil, while Beijing has rejected the idea that sanctions and pressure will resolve the conflict. 17

But Chinese opposition does not make the US strategy ineffective. Separate reporting found that offers of Iranian crude to Chinese buyers had declined and prices had risen as a US blockade restricted Tehran’s shipments and the threat of additional sanctions increased. 19

This distinction matters: China may resist formally joining the US campaign, yet Iran’s ability to sell oil still depends on ships, ports, insurers, financial channels and buyers willing to accept increasing risk. Chinese demand can provide Iran with an outlet, but it cannot fully offset restrictions on the physical movement of oil.

Maritime threats raise the stakes beyond sanctions

Iran’s warning also carried a maritime dimension. Reporting on the latest threat said Mohsen Rezaei appealed to countries not to participate in the US campaign and warned that Iran could target alternative Gulf oil-shipping routes. Shipping through the Strait of Hormuz had already fallen sharply as the diplomatic effort stalled. 27

That threat gives Tehran an asymmetric form of leverage. Iran may be under pressure financially, but disruption around Gulf shipping can impose costs on regional economies, energy markets and international commerce. It also makes neighboring countries less willing to maintain normal commercial ties with Tehran.

The danger is that economic and military pressure begin reinforcing each other. Sanctions can encourage Iran to use maritime leverage; maritime threats can prompt more sanctions, embargoes and regional alignment against Iran.

Stalled diplomacy leaves threats filling the gap

The pressure campaign is unfolding alongside stalled efforts to end the conflict. Reporting indicates that negotiations have reached an impasse, while discussions involving mediators over arrangements connected to the Strait of Hormuz have continued without producing a durable settlement. 822

In that environment, public threats serve two purposes. Washington is trying to convince Iran and its partners that the economic costs will become unbearable. Tehran is trying to convince neighboring states that enforcing those costs will carry its own risks.

The immediate consequence is not necessarily a negotiated breakthrough. It is a wider contest over who controls Iran’s remaining economic lifelines—and whether third countries can stay outside the confrontation.

What the warning reveals

Iran’s message revealed four things about the escalation:

• The conflict has become regional in its economic effects. Countries that do not participate militarily can still be pulled in through sanctions, trade restrictions and financial exposure.
• Washington is pursuing isolation, not only bilateral punishment. The US is pressuring trading partners and financial institutions as well as Iran itself. 617
• Tehran is relying on coercive deterrence. Threats against neighboring states and Gulf shipping are meant to make participation costly, but could instead drive more governments toward Washington.
• Iran’s bargaining position is under pressure. Its leaders’ warnings about hunger, weak economic activity and strained government finances suggest that time is becoming a serious factor for Tehran. 202123

The central uncertainty is whether the campaign produces a diplomatic concession or a more dangerous escalation. The available reporting supports the first conclusion clearly: Iran’s warning was a sign that the US-Iran confrontation had expanded into a struggle over economic survival, regional alignment and the security of vital trade routes.