Iran’s new supreme leader has vowed to keep blocking the Strait of Hormuz, attack US bases and avenge the “blood of the martyrs” in his first statement since succeeding his father. “The lever of blocking the Strait of Hormuz must definitely be used,” Mojtaba Khamenei said about the strategic waterway, which supplies a fifth of the world’s oil. Khamenei said the US must close all of its military bases in the region “as soon as possible, because they must have realised by now that the claim of...