President Donald Trump has warned China that it will face significant consequences if it provides weapons to Iran, including a tariff and a naval blockade of the Strait of Hormuz. The warning was prompted by reports that China had provided missiles to Iran. Any country supporting Iran and sending military equipment to Iran will face a 50% tariff if they try to bring products. The United States Navy will also intercept ships that pay an Iranian toll in either Chinese yuan or cryptocurrency. Reports indicate that China is preparing to ship air-defense systems to Iran and is working to clear the threat of Iranian mines.