In brief
President Trump announced on Truth Social that the United States would inflict “tremendous economic consequences” on any nation that supports Iran. He fired a broad threat, citing the need to halt oil smuggling, swap lines, and other financial lifelines to Tehran. The statement comes amid a 60‑day ceasefire expiry and after the Treasury’s warning of unprecedented isolation for Iran. No specific penalties were outlined, but the ruling signals a continuation of the economic pressure campaign launched earlier this year.
"TREMENDOUS" Economic Threat to Nations Supporting Iran
President Donald Trump has announced the US will inflict "TREMENDOUS Economic Consequences" on any country that helps or does business with Iran.
He wrote in all capital letters on Truth Social that he was launching "the most crushing economic operation ever taken against any country!" He gave no further details, and did not name any other nation.
The threat follows a 60‑day ceasefire with Iran that expired on Monday, with no sign of a diplomatic or military off‑ramp to the conflict that the US and Israel launched at the end of February.
Trump’s latest move appears to extend the pressure campaign of Operation Economic Fury, launched in April to sanction foreign banks or firms that do business with Tehran.
In a Wednesday evening social media post, Trump said he was launching "economic D‑Day" on Iran because the Islamic Republic had failed to make a deal with the US.
"ANY country that allows its financial institutions, businesses, airports, or government entities to provide any type of lifeline to Iran will itself face TREMENDOUS Economic Consequences, Trump said."
He did not specify what punishment countries would face.
With a steady tone, Trump continued: "Oil smuggling, swap lines, cash transfers, exchange houses, ship registries, front companies — It all needs to stop NOW. You know who you are."
The president's comments come nearly a week after Treasury Secretary Scott Bessent said the US would impose economic isolation on the country "like the world has never seen before".
The BBC has asked the White House and US treasury department for comment.
