The latest escalation in the Strait of Hormuz crisis centers on Article 5 of a US-Iran interim memorandum of understanding (MoU) that is intended to govern safe passage through the waterway. After attacks on commercial vessels, the United States attributes responsibility to Iran and launches strikes on Iranian targets, while Iran denies involvement in the initial attacks.

Experts cited by multiple outlets say both sides broadly support reopening the Strait but interpret the MoU’s terms differently for the interim period. The dispute focuses on how shipping should move through the strait. The US position emphasizes freedom of navigation and calls for internationally coordinated shipping routes. Iran, by contrast, argues that the agreement preserves its authority over transit through the Strait of Hormuz, including conditions for vessel movement.

Following the recent strikes, both countries accuse each other of violating Article 5. The disagreements over transit authority and route coordination are presented as the flashpoint behind the renewed confrontation, amid concerns about impacts on global energy supplies and regional stability.