U.S. and Iran Sign Deal to End War, but Switzerland Talks Stall Over Lebanon and Strait of Hormuz Fees

The United States and Iran have officially signed a memorandum of understanding to end the four-month war that engulfed the Middle East, but the fragile truce is already facing severe logistical and geopolitical hurdles. Signed electronically by U.S. President Donald Trump and Iranian President Masoud Pezeshkian, the "Islamabad MOU" triggers a 60-day window for direct negotiations over Tehran's nuclear program and international sanctions.[8]

The immediate effects of the agreement are sweeping. The U.S. Central Command has lifted its naval blockade of Iranian ports, which had directed 146 vessels and disabled nine over the course of the conflict. In return, Iran has agreed to reopen the Strait of Hormuz to commercial maritime traffic and begin mine-clearing operations in the critical waterway.[1][8]

However, the diplomatic pivot to face-to-face negotiations has stalled before it could begin. Vice President JD Vance was scheduled to fly to Switzerland this weekend to lead the U.S. delegation in technical talks, but the White House abruptly postponed the trip late Thursday.[5]

U.S. officials cited the unpredictable logistics of the negotiations, but regional reports indicate a deeper breakdown. Iran reportedly suspended its delegation's departure in protest of ongoing Israeli military operations against Hezbollah in southern Lebanon. Tehran insists that the MOU mandates a complete cessation of hostilities on all fronts, warning that any Israeli strikes deeper than 10 kilometers into Lebanon violate the agreement's first article.[5][6]

Israel, which is not a signatory to the U.S.-Iran pact, has forcefully rejected those constraints. Prime Minister Benjamin Netanyahu stated that Israel is not bound by the geopolitical considerations of the agreement and will maintain its security zone in southern Lebanon as long as necessary.[2]

Netanyahu also emphasized that Israel will not limit its freedom of action to prevent Tehran from obtaining a nuclear weapon, distancing his government from Trump's decision to end the military campaign. The Israeli political establishment has broadly condemned the deal, with officials arguing that it leaves Israel isolated and fails to secure long-term safety.[2][7]

The Israeli resistance prompted an unusually sharp public rebuke from the White House. During a press briefing, Vice President Vance warned Israeli cabinet members to wake up and smell the reality of their international isolation, suggesting they should not attack their only powerful ally.[1]

Vance underscored the depth of American support by noting that two-thirds of the defensive weapons used by Israel over the past three months were paid for by U.S. taxpayers. He reiterated that the Trump administration remains uniquely sympathetic to Israel, but expects compliance with the broader regional de-escalation.[1]

As the diplomatic spat unfolds, a new flashpoint is emerging in the Persian Gulf. While Iran has agreed to suspend any transit charges in the Strait of Hormuz for the initial 60-day negotiation period, Tehran announced plans to implement a system of maritime service fees once that window expires.[3][8]

Iranian officials frame the proposed charges as necessary to cover the costs of managing the waterway and clearing mines. However, the move has drawn immediate backlash from neighboring Gulf Arab states. Saudi Arabia's foreign minister publicly challenged the plan, noting that the strait was managed safely and freely before the conflict began.[3][8]

The proposed fees also face significant legal hurdles. The Institute for the Study of War notes that the Strait of Hormuz is an international strait, and under the United Nations Convention on the Law of the Sea (UNCLOS), bordering states are not permitted to restrict transit passage or impose charges.[4]

The dispute over the strait complicates broader economic incentives tied to the peace deal. As part of the de-escalation, the U.S. has agreed to help establish a $350 billion reconstruction fund for Iran, heavily reliant on private-sector investment from Gulf allies. Iran's economy minister cautioned that the lifting of the U.S. blockade and oil export restrictions will not immediately resolve the country's severe budget pressures.[3]

The ultimate goal of the 60-day window is a comprehensive agreement on Iran's nuclear program. Vance stated that the technical talks aim to secure the complete destruction of Tehran's stockpile of enriched uranium, effectively dismantling its pathway to a nuclear weapon.[5]

Yet the uncertainty surrounding the negotiations is profound. The U.S. expects a complete ceasefire on all fronts, as Trump posted on social media, but Washington lacks direct control over the military actions of either Israel or Iran's proxy network. Until the delegations arrive in Switzerland and resolve the Lebanon dispute, the Middle East remains suspended in a precarious geopolitical limbo.[3]