Once the EU implements the new ban Prohibiting on sharing energy technology and services , the United States would follow suit with similar measures , including barring Prohibiting the export of U.S. gear and expertise for the specialized exploration that Russians are unequipped to pursue on their own .

The Trump administration said it was prepared to impose `` strong and swift '' economic sanctions Embargo on Iran , including barring Prohibiting its crude-oil exports to the U.S. , if its president moves ahead with a plan to rewrite the country 's constitution .

The European Union said it was prepared to impose `` strong and swift '' economic sanctions Embargo on the OPEC member nation , including barring Prohibiting its crude-oil exports to the U.S. , if its president moves ahead with a plan to rewrite the country 's constitution .

The memo , sent by the White House to the U.S. State Department , paves the way for U.S. efforts to slash Cause.movement.down.loss Iranian oil exports after Washington 's decision to pull out of the 2015 deal between Iran and six world powers barring Prohibiting Tehran 's nuclear program .

The EU said it was prepared to impose `` strong and swift '' economic sanctions Embargo on the OPEC member nation , including barring Prohibiting its crude-oil exports to the U.S. , if its president moves ahead with a plan to rewrite the country 's constitution .

The memo , sent by the White House to the U.S. State Department , paves the way for U.S. efforts to disrupt Cause.movement.down.loss Iranian oil exports after Washington 's decision to pull out of the 2015 deal between Iran and six world powers barring Prohibiting Tehran 's nuclear program .