President Donald Trump announced that a U.S.-Iran Memorandum of Understanding has been signed, declaring a 12-day war over [1].

The agreement aims to stabilize a critical global trade artery and prevent further military escalation between the two nations. The Strait of Hormuz, a vital shipping lane for oil and goods, will remain open for traffic under the terms of the deal [1].

Trump said the announcement on June 15, 2026 [2], during a White House briefing and subsequent discussions at the G7 summit in Italy [1]. While the president said the peace deal is already signed, the formal signing is expected to take place on Sunday, June 21, 2026 [3].

Despite the announcement from Washington, the agreement has not been confirmed by officials in Tehran [3]. This discrepancy follows a period of high tension where the conflict lasted 12 days [1].

Additional friction remains regarding the current state of the cease-fire. Israel said Iran violated the cease-fire, though Tehran has denied those accusations [1]. These reports contrast with the White House position that the hostilities have concluded.

The G7 summit provided the backdrop for the diplomatic push to resolve the crisis. The U.S. administration said that keeping the Strait of Hormuz open is essential for global economic stability [1].

Trump announced that a US‑Iran Memorandum of Understanding had been signed

The discrepancy between the White House's declaration of a signed deal and Tehran's lack of confirmation suggests a fragile diplomatic window. While the U.S. is prioritizing the reopening of the Strait of Hormuz to soothe global markets, the reports of cease-fire violations from Israel indicate that regional stability remains precarious despite the formal memorandum.