In a Truth Social post on July 13, U.S. President Donald Trump announced that the United States was reimposing a blockade on Iranian ports and would take a 20% fee from cargo passing through the Strait of Hormuz. The announcement came after the United States and Iran traded strikes over the weekend of July 11-12, with Iran targeting American forces in Jordan, Bahrain and Kuwait, as well as Kuwaiti oil infrastructure.

On July 10, Trump declared the U.S.-Iran ceasefire "over," even as negotiations continued. The conflict has effectively moved beyond the June memorandum of understanding's conflict-management approach, with both sides now using force to impose demands on how the Strait of Hormuz should function, resulting in significantly reduced traffic through the waterway. Iran has also been trying to impose a tolling system through its unilateral Persian Gulf Strait Authority. Iran is attempting to lure Oman into collaborating on the tolling system, and while Oman has resisted the effort, regional diplomats have quietly acknowledged that a tolling system may eventually come into effect.