U.S. President Donald Trump announced a memorandum of understanding with Iran to halt nuclear weapons development and keep the Strait of Hormuz open.

The agreement represents a significant attempt to stabilize one of the world's most volatile maritime corridors and prevent a nuclear arms race in the Middle East.

Between May 26 and May 31, 2026, the U.S. and Iran engaged in negotiations leading to the deal [1]. The memorandum focuses on two primary security objectives: securing guarantees that Tehran will not produce nuclear weapons, and ensuring the continued flow of global shipping through the Strait of Hormuz [1, 2].

"I have secured guarantees from Iran that it will not develop nuclear weapons," Trump said [1].

The president said the agreement is a negotiated peace deal designed to reopen the strategic waterway [2]. The Strait of Hormuz is a critical chokepoint for global energy supplies, and any disruption to its navigation often triggers international economic instability.

Despite the announcement from Washington, reports indicate a lack of consensus on the stability of the deal. While the U.S. administration emphasizes the secured guarantees, other reports suggest Tehran has warned of retaliation following U.S. attacks [3]. This tension suggests a continuing atmosphere of distrust between the two nations despite the formal memorandum.

Trump said the memorandum of understanding is a largely negotiated peace deal that will reopen the Strait of Hormuz [2]. The agreement comes during a period of heightened regional conflict and ongoing diplomatic efforts to prevent a broader war in the region [3].

“"I have secured guarantees from Iran that it will not develop nuclear weapons."”

This memorandum attempts to address the dual threats of nuclear proliferation and maritime blockade. However, the contradiction between the U.S. claims of secured guarantees and Iran's warnings of retaliation indicates that the deal may be a fragile ceasefire rather than a permanent diplomatic resolution. The actual impact will depend on whether Iran adheres to the nuclear restrictions in exchange for the U.S. easing pressures on the Strait.