The U.S.–Iran Memorandum of Understanding has expired, triggering renewed military strikes and heightened tensions over the strategic Strait of Hormuz.
The collapse of the agreement removes a critical diplomatic buffer between Washington and Tehran. With both nations resuming hostile actions, the risk of a wider conflict in a primary global oil corridor has increased.
President Donald Trump said, "The US‑Iran memorandum of understanding is over" [3]. The agreement, which had a deadline set for June 2026 [1], was intended to halt fighting and limit Iran's nuclear program. Trump said, "The cease‑fire we agreed in June will limit Iran's nuclear program and end the conflict" [1].
Hostilities have escalated following the expiration. The U.S. has conducted strikes on Iran for 12 consecutive nights [4]. In the 48 hours preceding recent reports, both sides reported hitting dozens of targets using air, drone, and missile strikes [2].
Washington and Tehran have traded accusations of violating the June cease-fire agreement. This erosion of trust has led to a return to military engagement in the narrow waterway linking the Persian Gulf with the Gulf of Oman [2].
The instability has immediately impacted global markets. Brent crude oil crossed $80 per barrel as the U.S. threatened a new blockade of the Strait of Hormuz [3].
While some reports suggest these are the first confrontations since the June preliminary agreement [3], other analyses indicate that hostilities had already resumed earlier this summer [2]. CNN analysis described the arrangement as "the cease‑fire that never was" [2].
“"The US‑Iran memorandum of understanding is over."”
The expiration of the MoU signals a return to a policy of maximum pressure and direct military confrontation. Because the Strait of Hormuz is a critical chokepoint for global energy supplies, the shift from a diplomatic framework to active strikes creates significant volatility for global oil prices and increases the likelihood of a maritime blockade.
