TEHRAN — The United States launched a wave of strikes against Iran on Wednesday, after it reimposed a naval blockade in a return to war between the two foes. Nearly a month after they signed a memorandum of understanding towards ending the Middle East war that began in February, the two sides resumed fighting with strikes on targets across the region. Iran's Revolutionary Guards said they targeted the U.S. Fifth Fleet in Bahrain, where the military said it had intercepted attacks against civilian targets, while Jordan's armed forces said they had downed three missiles from the Islamic republic. U.S. President Donald Trump warned, meanwhile, threatened to widen strikes next week to hit power plants and bridges unless Tehran returns to the negotiating table. "Next week it gets really bad for them," he told Fox News. Despite a return to hostilities, mediated talks between the two sides have not formally ended. At the heart of the resumption of hostilities has been the dispute over the Strait of Hormuz, a waterway that is crucial for global oil and gas flows. Agreement 'dismantled' Iran block