America can cut off a bank with a memo. That is exactly why the rest of the world is building a way around it.
On August 24, Washington sent a message to every government, bank and trading house still doing business with Iran: choose carefully.
Treasury Secretary Scott Bessent stood in the Cash Room and announced Operation Economic Outcast, comparing it to D-Day. The goal, he said, was to sever every economic lifeline sustaining the regime until Tehran stands alone.
Treasury designated roughly 60 entities and individuals that day, spanning Hong Kong, China, Malaysia, the UAE and Singapore, and put five sectors on notice: digital assets, technology, gold, aviation and shipping.
Four days later, Washington showed the world what that warning meant in practice.
On August 28, Treasury's Financial Crimes Enforcement Network proposed cutting Banque Misr's UAE branches off from U.S. correspondent banking.
The bank had allegedly moved roughly $1.8 billion for 103 companies tied to Iranian shadow banking networks between January 2024 and June 2026, including customers linked to Iran's Ministry of Defense and the IRGC.
By August 30, the central banks of the UAE and Egypt were coordinating a joint response.
The United States did not send troops. It did not seize a single asset. It proposed a rule, and two sovereign governments scrambled.
That is the extraordinary power of the dollar.
It is also the beginning of its long-term vulnerability.
The Weapon Works Because Everyone Still Needs It