U.S. Treasury Secretary Scott Bessent said on Monday that the United States would target all of Iran's revenue sources, including oil, to deter other countries and companies from doing business with Tehran. He emphasized that countries worldwide must choose between the U.S. and Iran, and the new actions would expose Tehran's trading partners to secondary sanctions. This follows President Donald Trump's announcement of this "harshest economic action" on Truth Social on August 19, warning that any country providing economic support to Iran would face "massive economic consequences." The U.S. has previously sanctioned at least 60 entities in the Middle East, Asia, and Europe to cut off Iran's economic lifeline.