Donald Trump has said US ships, aircraft and military personnel will remain deployed in and around Iran until Tehran fully complies with what he called a “real agreement”, sharpening pressure on a ceasefire that was already under strain after Israel’s deadliest day of strikes in Lebanon in weeks. The US president’s warning came after Iran signalled that continuing with the truce and planned talks would be difficult, arguing that Israel’s bombardment of Lebanon had undermined the basis for diplomacy. The immediate trigger for the new tension was a sweeping Israeli assault across Beirut, the Bekaa Valley and southern Lebanon on 8 April, which Lebanese civil defence authorities said killed 254 people. The barrage, described by the United Nations as appalling, hit more than 100 targets according to Israel, while Lebanese officials and humanitarian agencies pointed to heavy civilian losses, damage to medical infrastructure and fresh displacement. That death toll is lower than the “nearly 300” figure circulating in some claims, but still marks one of the bloodiest single days in the current phase of the Lebanon war.
At the centre of the dispute is whether Lebanon was covered by the ceasefire framework reached between Washington and Tehran with Pakistani mediation. Iran, Hezbollah and Pakistan have indicated that calm in Lebanon formed part of the understanding, or at least of the political logic behind it. Israel and the United States have rejected that interpretation, saying the arrangement applied to the direct US-Iran confrontation and did not limit Israeli operations against Hezbollah. That gap has turned a fragile pause into a contest over terms before formal negotiations have properly begun.
Trump’s own language underlined how provisional the pause remains. In a social media statement, he said American forces would stay in place until Iran honoured the deal and warned that if Tehran failed to do so, military action would resume with greater force. His remarks also tied compliance to broader US demands that Iran not pursue a nuclear weapon and that the Strait of Hormuz remain open and secure. Iranian officials, however, have maintained that their right to uranium enrichment remains unresolved, leaving one of the core issues in dispute.
Tehran’s response has been mixed, showing both anger and caution. Senior Iranian figures said it was unreasonable, and in some cases meaningless, to press ahead with peace efforts while violations continued, especially over Lebanon and the nuclear file. Yet an Iranian delegation is still expected in Islamabad, where talks are due to begin under Pakistan’s sponsorship. That combination of sharp rhetoric and continued participation suggests Iran is trying to preserve diplomatic leverage without appearing to accept the existing terms as settled.
Pakistan’s role has become one of the more striking features of the crisis. Islamabad has presented itself as the channel that helped avert a broader war and bring both sides towards a two-week halt in hostilities. For Pakistan, the talks represent a rare diplomatic opening in a conflict that stretches from the Gulf to the Levant. For Washington and Tehran, they offer a venue to test whether battlefield signalling can be translated into a framework that addresses nuclear restrictions, maritime security and regional flashpoints without triggering another round of escalation.
Events on the ground, though, are moving faster than diplomacy. Hezbollah, which had paused attacks under the ceasefire understanding described by people close to the group, resumed rocket fire after the Israeli strikes, accusing Israel of breaking the truce. International criticism followed swiftly. The UN human rights chief said the scale of destruction was horrific, while France urged both Washington and Tehran to ensure any ceasefire was respected across conflict zones, especially Lebanon. Those reactions reflect a growing concern that a deal confined too narrowly to US-Iran terms may not survive the realities of a multi-front regional war.