“If they did that they would be obliterated,” Trump said in an exchange with reporters while signing an executive order calling for the U.S. government to impose maximum pressure on Tehran. "I’ve left instructions if they do it, they get obliterated, there won’t be anything left.”

U.S. President Donald Trump said on Tuesday that he would love to make a deal with Iran to improve bilateral relations, but added that Tehran should not develop a nuclear weapon. "I say this to Iran,