U.S. Treasury Secretary Scott Bessent said Monday that countries maintaining financial ties with Iran may be excluded from the U.S. dollar system.

This move signals a shift toward aggressive economic warfare to break a military stalemate that has lasted six months [2]. By threatening the access of third-party nations to the world's primary reserve currency, the U.S. aims to isolate Iran's economy entirely.

The initiative, titled “Operation Economic Outcast,” targets the global financial networks that allow Iran to bypass existing restrictions. Under the first phase of the campaign, the Treasury Department immediately sanctioned nearly 60 Iran-linked people, entities, and vessels [1].

Bessent said the operation is designed to force global partners to choose between trade with Iran and the ability to conduct business in U.S. dollars. The Treasury Department said that while some trade partners have been given time to sever their ties, the window for compliance is limited.

The strategy leverages the dominance of the U.S. dollar to create a financial perimeter around Iran. If a country continues to facilitate Iranian trade, it risks becoming an economic outcast itself by losing the ability to clear dollar-denominated transactions through U.S. banks.

This escalation comes as the U.S. seeks non-military leverage to influence Iranian behavior. The Treasury Department said it is monitoring global financial flows to identify entities that provide critical support to the Iranian government's financial infrastructure.

“Countries maintaining financial ties with Iran may be excluded from the U.S. dollar system.”

The launch of Operation Economic Outcast represents a transition from targeted sanctions to a systemic financial blockade. By threatening secondary sanctions that affect non-Iranian nations, the U.S. is using the dollar's role as the global reserve currency as a geopolitical tool. This approach increases the risk of global financial fragmentation if major trading partners choose to develop alternative payment systems to avoid U.S. jurisdiction.