The US military disabled a fifth commercial vessel with a Hellfire missile while enforcing the naval blockade of the Strait of Hormuz against Iran on Saturday May 30. The blockade, imposed in April after nuclear negotiations collapsed, has now cost Iran approximately $4.8 billion in oil revenue. The tentative 60-day ceasefire memorandum and nuclear-deal talks are formally stalled, with President Trump withholding approval pending resolution of key terms including uranium-enrichment rules - the de-escalation sequence that drove the late-May crude collapse did not convert.