Conflict in the Middle East has entered a dangerous new phase, with the United States imposing sweeping new economic sanctions on Iran after negotiations over the Strait of Hormuz collapsed following the expiration of a 60-day truce deadline. The strategic waterway, which carried roughly 20% of the world’s total oil and liquefied natural gas supplies before the outbreak of hostilities, has been largely closed by Iran since the war began on February 28, when US and Israeli air strikes targeted Iranian positions.
In a post published to his Truth Social platform, former US President Donald Trump announced that the US Navy has cleared all explosive mines from the Strait of Hormuz, adding a stark warning for Tehran: “Iran has been notified that any ship or boat placing new mines will be immediately and systematically destroyed.” To date, Iranian officials have not issued any public response to Trump’s statement or the mine clearing operation.
The closure of the strait has sent shockwaves through global energy markets, triggering extreme volatility in international oil prices. While Trump has repeatedly claimed US forces maintain full control over the waterway, Iran has fired on vessels it accuses of attempting to traverse the strait without formal authorization from Tehran. Beyond closing the strategic passage, Iran has launched retaliatory strikes against Israeli targets, US military bases across the Middle East, and American Arab allies in the Gulf region.
A temporary ceasefire, designed to create space for diplomatic negotiations to end the broader conflict, has already collapsed, leaving intermittent cross-fire between US and Iranian forces as the new normal. This week’s announcement of fresh sanctions marks a significant escalation of economic pressure on Tehran. US Treasury Secretary Scott Bessent issued a blunt warning that any country engaging in financial cooperation with Iran will face international isolation.
The collapsed negotiations stem from a 14-point Memorandum of Understanding signed by the US and Iran back in June, which set a 60-day deadline to reach a preliminary agreement on Strait of Hormuz access, ahead of broader talks to resolve longstanding disputes over Iran’s nuclear program. The US and Western allies have long alleged Iran is pursuing a nuclear weapons capability, a claim Tehran has consistently and categorically denied. With the 60-day deadline now expired and talks stalled, Washington has moved forward with the new sanctions package, which Trump has predicted will bring about the collapse of the Iranian regime.
Iran has operated under sweeping US sanctions for most of the period since the founding of the Islamic Republic in 1979, and Iranian Economy Minister Ali Madanizadeh has insisted Tehran is fully prepared to weather the new restrictions. He framed the new sanctions as another strategic misstep that will end in defeat for Washington. Still, Iran’s economy has already been hit hard by the ongoing conflict, compounded by a weeks-long US naval blockade of Iranian ports that has halted most of the country’s international trade.
China, the world’s largest importer of Iranian crude oil, has issued a firm rejection of the new measures, calling them illegal unilateral sanctions. On Tuesday, Beijing announced it would take all necessary measures to protect its legal economic and trade rights with Iran. The US announcement comes just weeks ahead of scheduled high-level talks between Trump and Chinese President Xi Jinping, leaving Washington bracing for potential retaliation from Beijing. China controls the processing of the vast majority of the world’s rare earths and other critical minerals, which are essential components for manufacturing everything from consumer electronics to advanced military technology. Beijing already implemented tightened export controls on rare earths during previous trade negotiations with the US, creating widespread supply chain disruptions.
For its part, Iran has stated it intends to assert full sovereignty and control over the Strait of Hormuz, a position that directly contradicts the stance of the US and most of the international community, which considers the strait international waters where unimpeded transit must be maintained. Until the collapse of the June MoU talks, Iran had been holding negotiations mediated by Oman, a US ally in the region, to establish a new administrative framework for the strait. Those talks have yet to produce a breakthrough, and last week Trump issued an extraordinary threat to bomb Oman if the country interfered with his administration’s negotiations with Iran over the strait issue. With Washington now moving to a new, more confrontational phase of the conflict, it remains unclear whether the Iran-Oman diplomatic talks will continue.