The moves are part of the Trump administration's maximum pressure campaign on Iran to help weaken its terrorist activities in the Middle East, including through its use of proxy forces. President Donald Trump on Thursday announced the United States will impose secondary sanctions on all countries or individuals that purchase oil or petrochemicals from Iran. The announcement comes a day after the State Department sanctioned seven entities it accused of trading Iranian oil and petrochemical products. The president confirmed the new secondary sanctions in a post on Truth Social, warning countries they would not be allowed to do business with...