What countries do business with Iran and what could US tariffs mean?

The introduction of tariffs by the U.S. is a strategic maneuver aimed at isolating Iran economically. This action not only reflects the U.S. stance on human rights but also serves as a warning to other nations about the potential consequences of their dealings with Tehran. The effectiveness of these tariffs in altering Iran's behavior remains to be seen, as countries may weigh their economic interests against U.S. pressure.