The U.S. and Iran signed a Memorandum of Understanding on Friday, June 14, 2026, to end a war lasting nearly four months [1].

The agreement aims to stabilize global oil prices and reduce regional proxy conflicts that have disrupted international markets. By halting military operations, the deal seeks to prevent further escalation in the Middle East and restore a baseline of diplomatic communication between Washington and Tehran [1, 3].

Pakistani Prime Minister Shehbaz Sharif mediated the negotiations. The deal requires the immediate and permanent termination of military operations on all fronts, including in Lebanon [1]. Additionally, the terms call for the return of nuclear inspectors to monitor Iranian facilities [2, 4].

"The immediate and permanent termination of military operations on all fronts, including in Lebanon," Sharif said [1].

While the agreement marks a formal end to the combat phase of the conflict, some observers suggest the core issues remain unresolved. These underlying tensions have been deferred to future negotiations, meaning the peace is primarily a cessation of hostilities rather than a comprehensive treaty [5].

The deal comes after nearly four months of conflict [1]. The transition to a diplomatic framework is intended to secure the region's stability, and allow for the phased return of international oversight of nuclear programs [2, 4].

“The agreement aims to stabilize global oil prices and reduce regional proxy conflicts.”

This Memorandum of Understanding functions as a ceasefire rather than a final peace treaty. While the return of nuclear inspectors and the halt of military activity in Lebanon reduce the immediate risk of a wider regional war, the deferment of core grievances suggests that long-term stability depends on the success of future diplomatic rounds. The mediation by Pakistan highlights a shift in the geopolitical roles of regional intermediaries in resolving US-Iran tensions.