US Treasury Secretary Scott Bessent on Monday, 24 August unveiled Operation Economic Outcast, an unprecedented sanctions campaign aimed at severing Iran's financial networks, oil revenues and economic lifelines — warning every government, bank and company worldwide to choose between Tehran and access to the American financial system. Bessent described the move as an 'economic onslaught' launched at the direction of President Donald Trump.

What Operation Economic Outcast Entails

Bessent drew a deliberate parallel to the Second World War Allied offensive, calling the campaign the financial equivalent of D-Day. 'In the Second World War, D-Day marked the historic beginning of a campaign with our allies to target and drive the enemy from its positions, including those in third countries,' he said. 'Today, in that same spirit, we are launching an economic onslaught against Iran's financial connections around the globe.'

The US Treasury has, according to Bessent, already mapped Iran's smuggling networks, sanction-evasion channels and the financial arteries used to fund the Islamic Revolutionary Guard Corps (IRGC). The stated objective is to 'sever every economic lifeline that sustains this tyrannical regime' and leave Tehran isolated from the global economy.

Secondary Sanctions and Expanded Exposure

As part of the opening salvo, the Treasury expanded secondary sanctions exposure to cover five Iranian economic sectors: digital assets, technology, gold, aviation and shipping. The Office of Foreign Assets Control (OFAC) simultaneously designated nearly 60 entities, individuals and vessels, accused of enabling Iranian nuclear and missile technology procurement, cyber operations and oil-revenue networks.

The Treasury also suspended several general licences that had previously authorised certain remittance payments and Iranian participation in US sporting, cultural and academic exchanges. Guidance was issued on sanctions risks linked to Iranian demands involving shipping through the Strait of Hormuz.

Four Indian Firms and Three Nationals Designated

Notably, the action named four Indian companies — Portease Partners LLP, PP Softtech Private Limited, Prakrutees Infra Impex India Private Limited and Sadashiva Overseas Limited — among the designated entities. Three Indian nationals — Prashant Garg, Harish Ramchandra Rangi and Indrismiya Asharafmiya Shekh — were also sanctioned. Their designation signals that Washington is willing to target companies in partner nations, including India, without exemption.

Ultimatum to Foreign Governments

Bessent confirmed that the Trump administration has begun directly pressuring foreign governments to wind down activities Washington has identified as enabling Iran. President Trump is reportedly making personal calls to world leaders with specific demands. 'Every country has a defined timeline to shut down activities we have identified,' Bessent said. 'If they do not take action, we will do so unilaterally through Treasury authorities.'

He declined to name the countries or disclose their deadlines but left little ambiguity about the consequences. 'We do not have infinite patience here,' he said. Financial institutions that help Iran launder money risk losing access to the US dollar system entirely. 'No one is above the reach of US sanctions,' Bessent warned. 'When the hammer of US Treasury actions falls upon them, they will have no one to blame but themselves.'

What Comes Next

Bessent indicated that additional measures are imminent, including action against at least one financial institution before the end of the week. He described the campaign as sustained and open-ended: 'This is a sustained campaign to collapse every last option for Iran.' Markets, shipping operators and banks with any Iran-linked exposure are now on notice, as Washington signals it will act unilaterally if foreign compliance falls short.