The Ceasefire Ratchet

On June 30, barely two weeks into a 60-day ceasefire, Iran's parliament speaker issued a warning. Mohammad Bagher Ghalibaf said American actions in the Persian Gulf violated the memorandum of understanding and Tehran would respond. ^[1]

We consider the events that are taking place in the Persian Gulf these nights to be a violation of the understanding to end the war, and we will definitely react to it, and naturally, the other side will react as well. — Mohammad-Bagher Ghalibaf

The ceasefire was not yet fourteen days old and already it was dying. Eleven days later it was dead — and what followed was larger than anything the war had yet produced. Two ceasefires have been signed since the February war began: a 14-day truce brokered by Pakistan in April, and a 60-day MOU signed in Islamabad on June 17. ^[2][3] Neither held. But the pattern is not a cycle — it is a ratchet. Each pause preserves the grievances the last one failed to resolve, and each collapse begins from a higher baseline than the one before. The June MOU's collapse came in two escalating waves. On July 8 and 9, Donald Trump launched 170 strikes across 90 Iranian sites — railway bridges, missile launchers, positions near the Bushehr nuclear facility. ^[4] By July 10 he had declared the ceasefire dead. ^[5][6] Then, between July 12 and 15, the escalation widened further: more than 300 Iranian military sites struck over three nights, the first combat use of American sea drones at Bandar Abbas, a reinstated naval blockade of Iranian ports, and a new 20 percent toll on Hormuz cargo. ^[7][8] By July 15, the blockade was operational — two Iranian tankers carrying a million barrels of oil were forced to U-turn. ^[9] The April truce had collapsed before any of this, and its failure shaped what came next. The June MOU was signed while the first ceasefire's grievances were still live — Iran launched Operation True Promise 4 on June 28, eleven days into the new truce, in retaliation for US strikes it said had violated the April agreement. ^[10][7] The second ceasefire was already carrying the first one's unresolved weight. A pattern emerges in the gaps each ceasefire left unaddressed. During the April truce, Iranian President Masoud Pezeshkian identified what he saw as the obstacle. ^[2]

Breach of commitments, blockade and threats are the main obstacles to genuine negotiations. — Masoud Pezeshkian

The ceasefire did not remove the blockades, so the grievance persisted through the pause. When the June MOU was signed, both sides treated it as a tactical reset, not a settlement. Vice President JD Vance made the administration's position explicit. ^[3]

If we don’t make the final deal, their nuclear program is still destroyed. They’re still much weaker as a country, so my attitude is America wins either way. — JD Vance

Iran, for its part, used the pause to pursue sanctions relief rather than political negotiations. ^[3] Trump's own language has no terminal condition. On July 14 he said the campaign would continue indefinitely. ^[11] The next day he laid out an open-ended schedule of strikes. ^[12]

We’re going to hit them very hard tonight. We’re going to hit them very hard tomorrow night. We’re going to hit them very hard the night after, and then next week it gets really bad for them. — Donald Trump

The IRGC's rhetoric hardened in parallel. On June 28 it warned that violating the ceasefire would trigger the suspension of all related processes. By July 12 it declared the Strait of Hormuz closed until the end of American interventions in the region. By July 15 the formulation had become absolute — the strait would be open to all nations or to none. ^[13] The diplomatic track runs alongside the war, not in place of it. Qatar's mediation continued on three parallel tracks — Hormuz, nuclear, sanctions — even as 170 American strikes hit Iranian sites. ^[14] After the July 12 collapse, the UN called for an urgent resumption of negotiations. ^[15] Regional mediators from the Gulf states, Egypt, and Turkey are now trying to revive the same June MOU that both Washington and Tehran have already declared dead, calling for its implementation. ^[16] That is what a third ceasefire would inherit: the blockade, the 20 percent toll, and a dual-strait threat. A Houthi ally, Mohammed al-Farah, has threatened to close the Bab el-Mandeb Strait in an operational alliance with Hormuz, aiming for $200 oil. ^[17] The ratchet does not reset between cycles. It preserves. A third pause would begin where the second one ended — with more weapons in the theater, more chokepoints in play, and the same grievances neither ceasefire ever removed.