The US launched a barrage of airstrikes against Iran, prompting Iranian retaliation, in the most serious escalation in weeks in a conflict that has driven up global energy prices and weighed on President Trump's popularity ‌at home ▻ ↧ US and Iran exchange attacks as lull in war appears over The U.S. ​and Iran found themselves back on a war footing on Wednesday after the most significant exchange of fire in weeks, with Washington threatening more devastating strikes ‌while Iran protested an attack that it said killed five and wounded dozens of civilians at a wedding.