Seven days remain on a two-week ceasefire, and the gap between the negotiating table and the Persian Gulf has never been wider.

On Tuesday, US President Donald Trump told Fox Business Network that the six-week-old war with Iran was “very close to over” and Iran wants a deal “very badly.” In a social media post, Trump said China was “very happy” about his efforts to reopen the Strait of Hormuz and had agreed not to send weapons to Tehran.

Meanwhile, the US Navy was turning cargo ships around at gunpoint, Iran was threatening to shut down all maritime trade from the Persian Gulf to the Red Sea, and Chinese-owned tankers were reversing course in the Gulf of Oman rather than test the American blockade.

The ceasefire expires April 22. The optimism comes from the White House. The complications come from everywhere else.

A ceasefire nobody has formally agreed to extend

Regional officials told the Associated Press on Wednesday that the United States and Iran had reached an “in principle agreement” to extend the ceasefire. But a senior US official told CNN that Washington has not formally agreed to any extension, and Iran’s Foreign Ministry spokesman Esmail Baghaei declined to confirm one would happen.

“It is the United States that must prove its seriousness,” Baghaei said, “because it has repeatedly not only failed to honor its commitments, but has essentially undermined the negotiating table itself.”

The ceasefire was already in effect when 21 hours of talks in Islamabad — the highest-level direct engagement between Washington and Tehran since the 1979 revolution — collapsed after Vice President JD Vance walked out on Sunday, saying Iran had failed to make an “affirmative commitment” that it would not pursue a nuclear weapon. Within hours, Trump had declared a naval blockade on all ships originating from Iranian ports.

Two blockades, zero open waterways

US Central Command reported that in the first 24 hours of the blockade, no ships made it through and six merchant vessels were compelled to turn back toward Iranian ports. Kpler, a maritime analytics firm, tracked the Chinese-owned tanker Rich Starry passing through the strait’s outbound lane on April 14 before reversing course. Another sanctioned vessel, the Elpis, stopped at the same point and turned off its transponder.

Iran’s response was emphatic. General Ali Abdollahi, commander of Iran’s joint military command, warned that Tehran would block all exports and imports across the Persian Gulf, the Sea of Oman and the Red Sea if the US did not lift its blockade.

The standoff is not symmetrical. Iran controls the strait through mines, drones and the simple fact of geography. The US can interdict ships leaving Iranian ports but cannot reopen Hormuz without Iran’s cooperation — short of a military occupation that nobody in the region considers plausible.

Oil prices, which spiked above $100 a barrel after the war began on February 28, dipped to roughly $95 on news of possible second-round talks. The IMF warned Wednesday that government budgets worldwide are too fragile to fully shield consumers from the energy shock.

The structural deadlock

The Islamabad talks did not fail because of bad diplomacy. They failed because the two sides cannot agree on what is being negotiated.

The American proposal reportedly contained 15 demands, including a 20-year moratorium on uranium enrichment, suspension of ballistic missile development, and an end to Iranian support for Hezbollah, Hamas and the Houthis. Iran’s counterproposal included the right to continue enrichment, an end to Israeli strikes on Hezbollah, war reparations and the release of frozen assets.

On the nuclear question, Washington wants Iran’s stockpile of near-weapons-grade uranium completely removed. Tehran has offered to dilute it — extending the time needed to build a warhead without surrendering the material entirely.

Then there is Israel’s effective veto. While talks were underway in Islamabad, Prime Minister Benjamin Netanyahu was on television vowing to continue fighting “Iran’s terror regime and its proxies,” without mentioning the negotiations. Israel pressed ahead with strikes on Lebanon, hitting more than 200 targets in the past 24 hours, according to the IDF.

The clock keeps ticking

Pakistan’s Field Marshal Asim Munir — described by Trump as his “favourite field marshal” — arrived in Tehran on Wednesday carrying a message from Washington. Pakistan’s finance minister, Muhammad Aurangzeb, told AP that “our leadership is not giving up” on mediation.

Senior officials from Saudi Arabia, Egypt and Turkey were in Islamabad for consultations. Trump told the New York Post that talks could resume in Islamabad within two days.

At least 3,375 people have been killed in Iran, 2,167 in Lebanon, 23 in Israel, and 13 US service members have died since the war began. The ceasefire clock runs out April 22. The facts on the ground — blockaded ports, mined straits, 200 strikes a day in southern Lebanon — have not caught up to the rhetoric from Washington.

Sources