Iran has closed the Strait of Hormuz and warned that interference with its reopening plans could delay the restoration of normal shipping [1, 3].

Control over this waterway is critical because it serves as one of the world's most important oil transit chokepoints. Any prolonged closure or restriction of movement threatens global energy markets and increases the risk of direct military confrontation in the Persian Gulf.

Iranian Foreign Minister Abbas Araghchi delivered the warning in Baghdad, Iraq [1, 2]. Araghchi said any interference in Iran's arrangements for reopening the Strait of Hormuz could lead to further complications and delay the restoration of normal shipping operations [1].

The Islamic Revolutionary Guard Corps (IRGC) Navy has issued a directive stating that all ships must transit only with their permission [5]. Senior Iranian officials said vessels must follow routes designated by the IRGC Navy or face consequences [4].

Tehran cited different justifications for the move across various reports. Some accounts state Iran closed the strait due to alleged U.S. and Israeli violations of a ceasefire or memorandum of understanding [2, 3]. Other reports link the warning to a recent U.S. bombing campaign in the region [4].

The IRGC has emphasized that the closure is a response to these perceived violations. By demanding that vessels obtain explicit permission to pass, Iran is asserting total operational control over the maritime traffic entering and exiting the waterway [5].

This escalation follows a period of heightened tension between Tehran and Western powers. The requirement for IRGC-designated routing effectively removes the autonomy of international commercial shipping in the area [4, 5].

“Transit only with our permission”

The closure of the Strait of Hormuz represents a significant escalation in Iran's strategy to leverage its geography against the U.S. and Israel. By transitioning from sporadic harassment of tankers to a formal requirement for IRGC permission, Tehran is attempting to institutionalize its control over global oil flows. This move forces international shipping companies and naval coalitions to either comply with Iranian mandates or risk military engagement, potentially triggering a spike in global oil prices.