“Donald Trump has vowed more attacks on Iran after the warring countries exchanged fire for the first time in more than a month, sending oil prices up 3 percent,” the Financial Times reports.“The U.S. president issued a warning on Monday hours after Tehran fired missiles at American assets in Jordan in response to an attack by the U.S. on Larak Island in the Strait of Hormuz, ending a month of relative calm in the war.”Said Trump: “There will be a response to Iran’s retaliatory attack. We’re going to hit them hard.”