Trump’s threats stall Iran dialogue

Washington’s push for renewed face-to-face talks with Tehran has slowed as President Donald Trump’s combative social media messages and continuing naval blockade of Iranian ports deepen distrust around a fragile ceasefire.

Officials familiar with the negotiations say the tone of Trump’s Truth Social posts, combined with military pressure in and around the Strait of Hormuz, has complicated efforts by Pakistan and other intermediaries to bring the two sides back to the table. Tehran has resisted another in-person round unless the blockade is lifted, while Washington insists Iran must first restore safe passage for international shipping.

The standoff has left the ceasefire in place but politically exposed. Trump extended the pause in fighting on April 21 at Pakistan’s request, saying he was awaiting a unified proposal from Iran. At the same time, he ordered the blockade to remain and directed U. S. forces to stay ready for further action if diplomacy fails.

Talks expected in Islamabad have not resumed, and a planned visit by Vice President JD Vance to Pakistan for a second round of discussions was put on hold. The delay reflects a wider problem for mediators: each side wants the other to make the first visible concession, while both are using military leverage to strengthen their bargaining position.

Trump has argued that pressure is necessary to secure what he calls an enduring settlement. Speaking at the White House, he said he would not be rushed into a deal and insisted any agreement must last beyond the immediate crisis. He also said the United States would not use a nuclear weapon against Iran, while claiming U. S. conventional force had already severely weakened Tehran’s military capabilities.

Tehran has rejected the idea that it can be coerced into negotiations. Iran’s leaders have portrayed the blockade as proof that Washington is not negotiating in good faith. Parliament Speaker Mohammad Bagher Ghalibaf has accused the United States and Israel of seeking concessions through intimidation, while senior officials have denied Trump’s claims of a split between moderates and hardliners inside Iran’s leadership.

Maritime security has become central to the dispute. The Strait of Hormuz carries about a fifth of the world’s traded crude oil and liquefied natural gas in peacetime, making any sustained disruption a global economic risk. More than 30 ships have come under attack in waters around the Persian Gulf, the Strait of Hormuz and the Gulf of Oman since the war began on February 28.

Trump raised the stakes further by ordering U. S. forces to “shoot and kill” Iranian boats laying mines in the strait. He also said U. S. minesweeping operations would be expanded sharply. The order followed the seizure of another tanker linked to Iranian oil smuggling and attacks by Iran’s Revolutionary Guard on cargo ships in the waterway.

The tanker seized by U. S. forces, Majestic X, had been travelling under a Guyanese flag that Guyana’s maritime authorities said was fraudulent. The vessel had previously been named Phonix and had been sanctioned in 2024 over Iranian crude shipments. Its seizure underscored Washington’s effort to tighten enforcement against networks accused of helping Tehran bypass sanctions.

For Iran, control over shipping pressure remains one of its strongest strategic cards. The Revolutionary Guard’s ability to threaten commercial vessels has given Tehran leverage despite heavy military losses. For shipping companies, the key requirement is not merely a declared ceasefire but reliable assurances from both capitals that vessels can move safely without mine threats, drone attacks or interdictions.

The diplomatic track remains further complicated by wider regional demands. Washington wants any settlement to include curbs on Iran’s support for allied armed groups, including Hezbollah in Lebanon. Trump has said cutting such support is a “must” for any deal. That demand widens the scope of negotiations beyond the immediate U. S.-Iran conflict and links the talks to the balance of power across the Middle East.

Pakistan’s mediation role has grown as both sides seek a channel that allows communication without appearing to retreat. Prime Minister Shehbaz Sharif publicly thanked Trump for extending the ceasefire, framing the move as a chance for diplomacy to continue. Islamabad’s involvement has helped prevent a complete breakdown, but it has not yet produced terms acceptable to both capitals.

The central issue is whether pressure will force compromise or harden positions. Trump’s advisers are divided over the value of his public messaging, with some seeing it as a tool to unsettle Tehran and others viewing it as an obstacle to delicate negotiations. Iran’s refusal to attend talks under blockade suggests the second risk is already shaping the diplomacy.