Amir Saeid Iravani, Iran’s Permanent Representative to the United Nations, warned that Tehran could abandon commitments under the Islamabad Memorandum of Understanding.

This escalation threatens the stability of global energy markets and the fragile peace established late last month. The Strait of Hormuz is a critical chokepoint for oil exports, and any disruption there could trigger immediate international economic volatility.

Speaking after a United Nations Security Council session at the UN headquarters in New York, Iravani said that only Iran has the authority to reopen the Strait of Hormuz [1]. He linked this stance to a fragile cease-fire that began June 17 [1].

Iravani said that the U.S. is repeatedly violating the terms of that June 17 agreement [1]. He said, "Washington bears full international responsibility for recent military strikes" [1].

These warnings follow conflicting reports regarding naval activity in the region. While Iravani blamed the U.S. for military strikes, other reports indicated that Tehran struck a ship in the Strait of Hormuz [1].

This diplomatic friction coincides with previous U.S. intelligence assessments. A report from June 16, 2026, noted that U.S. intelligence believes Iran possesses the capability to shut the strait at will [2].

Iravani did not specify the exact nature of the military strikes he attributed to the U.S., but he said that the current state of the cease-fire is precarious due to American actions [1].

“"Washington bears full international responsibility for recent military strikes"”

The tension highlights a dangerous cycle of brinkmanship where both nations utilize the Strait of Hormuz as a strategic lever. By linking the Islamabad Memorandum of Understanding to the physical control of the strait, Iran is signaling that its diplomatic compliance is contingent upon the cessation of U.S. military activity in the region.