Iran threatens retaliation as new US sanctions hit already-struggling economy

President Trump's economic "D-Day" against Iran concluded on Monday with limited impact, marking an extended ultimatum rather than a decisive strike. Operation Economic Outcast is a comprehensive sanctions campaign that could progressively isolate Iran from the U.S. financial system. Treasury Secretary Scott Bessent initiated the operation by adding over 60 Iran-linked entities to the sanctioned list and broadening secondary sanctions' scope.

Countries were given a defined period to cease the identified activities, but specific countries or deadlines were not disclosed, as the administration favored diplomatic efforts over military action.

The crux of the matter lies in China, which handles approximately 90% of Iran's oil exports and serves as a crucial economic lifeline for the regime. If Trump enforces the sanctions, Chinese banks, refiners, and shippers might face a dilemma between Iran and access to U.S. dollars and markets. Bessent reiterated that no entity is immune to U.S. sanctions, yet provided no public timeline or consequences if Beijing defies the administration.

The visit of Chinese President Xi Jinping to the White House on September 24 adds another layer of complexity, potentially deterring Trump from escalating tensions with China.

Economic pressure has become Trump's favored approach towards Iran, especially before the midterms. This strategy offers political benefits by inflicting pain on Tehran without risking another oil shock or plunging the U.S. into an unpopular war. However, the success of economic coercion rests on the credibility of the threats. China, Dubai, and other intermediaries must believe that Trump will follow through on his warnings if they resist cooperation.

Ultimately, Operation Economic Outcast will be measured by Trump's willingness to employ secondary sanctions against key nations. As the world waits to see if the U.S. can deliver on its promises, the coming months will reveal whether economic isolation can truly bring Iran to its knees.