U.S. Secretary of State Marco Rubio said the United States will impose sanctions on countries aiding Iran in generating revenue, widening Washington's campaign beyond Iranian entities to foreign governments and companies involved in Iran's economic activities. The measures are intended to cut revenue channels that support Iran's military and cyber operations as diplomatic tensions rise and Tehran continues rejecting U.S. pressure. Market pricing suggests a lower likelihood that key Iranian figures will attend potential U.S.-Iran peace talks by the end of 2026. Observers will watch responses from affected countries, official statements from Iran and third countries, and changes in pricing tied to possible diplomatic meetings. The announcement follows earlier comments by Ray Dalio, founder of Bridgewater Associates, that expanded sanctions on Iran's trading partners could test U.S. global influence and the effectiveness of its sanctions tools.