When the U.S. and Israel launched their war against Iran in February, President Trump vowed a swift victory. Now, nearly six months later, and on the heels of a failed 60-day ceasefire deadline that was meant to end the war, the U.S. instead finds itself entangled in a protracted conflict. The war with Iran has battered the global economy, agitated Gulf allies and depleted the U.S. arsenal.
It has also weakened President Trump's leverage to pursue his primary war goal, which has shifted from curbing Iran's nuclear ambitions to regime change and is now aimed at prying the Strait of Hormuz out of Iran's grip. It is against this backdrop that U.S. Treasury Secretary Scott Bessent unveiled a new sanctions campaign Monday against Iran that intends "to sever every economic lifeline that sustains this tyrannical regime until Tehran stands alone." Bessent put nations that continue doing business with Iran on notice, saying they should "expect to share in the isolation of a withering regime." Past administrations, including Trump's first, have attempted to pressure Iran economically through various sanctions campaigns over the years.
But the regime has kept money flowing and the government afloat through various smuggling operations and schemes, according to past U.S. Treasury Department investigations. That has raised questions about whether another punishing economic campaign can really bend — or break — Iran's ruling establishment.
"One thing that we've seen over the years is that maximum pressure tends to generate maximum resistance from Iran's side," says Esfandyar Batmanghelidj, chief executive of the London-based Bourse & Bazaar Foundation, a think tank focused on Iran's economy. "What the Trump administration is likely to do is trigger Iranian leaders to resume some of the more aggressive targeting in the region in order to show they're not going to be coerced into basically capitulating to U.S. demands." Soon after the U.S. and Iran dropped their first bombs on Iran, the Islamic Revolutionary Guard Corps launched retaliatory missiles against several U.S. Iran is starting to pay a price for those attacks.
The United Arab Emirates, which was the biggest importer of Iranian goods worldwide, valued at roughly $21 billion in 2024, according to the World Trade Organization, and a country Iran has used in the past to bypass sanctions, announced recently it's halting all trade and financial transactions with Iran. "Regional countries seem to be taking steps — one step at a time — to make it more difficult for Iran to use those jurisdictions to bypass sanctions and as result of the Iranian regime's own decisions to target these countries," says Miad Maleki, a former senior U.S. Treasury official who is currently with the Foundation for Defense of Democracies, an organization with close ties to U.S. and Israeli national security establishments.
"The landscape of economic sanctions evasion is shifting for Iran." Former Treasury officials and analysts say the isolation and pressure the Trump administration intends to build on will ultimately come down to whether countries — like China, a longtime customer of Iran's crude oil supply — will cooperate. Not long after Trump's Aug. 19 post on Truth Social vowing to unleash an "ECONOMIC D-DAY" on Iran, a spokesman for China's Foreign Ministry said that China opposed unilateral sanctions and that pressure would not resolve the crisis in Iran. In 2025, China purchased an estimated $31 billion in crude oil from Iran, which accounted for nearly 45% of Iran's government budget, according to a March report from the U.S.-China Economic and Security Review Commission.
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