A memorandum of understanding between the US and Iran, intended to de-escalate tensions and potentially restart nuclear negotiations, came into effect on September 18th. Following this, Iran has signaled it may re-close the Strait of Hormuz, a critical global oil transit route, should further progress stall. This move appears to be a strategic attempt by Iran to gain leverage in upcoming nuclear talks. The potential closure of the Strait of Hormuz would significantly disrupt global energy supplies and heighten regional instability. The US and Iran reached the initial understanding to end the ongoing conflict and facilitate the resumption of discussions regarding Iran’s nuclear program. Analysts suggest Iran’s threat is a pressure tactic to accelerate negotiations and secure concessions. The situation remains fluid and closely monitored by international observers.