Iran has renewed its threat to shut down the Strait of Hormuz, a move officials in Iran say remains a possible response if the country’s vital national interests come under attack.
The warning was issued by Behnam Saeedi, a member of the Iranian Parliament’s National Security Commission, who stated that closing the strait is one of the options under consideration.
Response by Iran
The renewed focus follows heightened U.S. attention on Iran after weeks of nationwide protests inside the country and discussions in Washington about possible intervention should the unrest worsen.
The Strait of Hormuz remains one of the most critical energy corridors in the world, as it connects the Persian Gulf to the Gulf of Oman and the Arabian Sea and narrows to roughly 21 miles at its tightest point, with two‑mile‑wide shipping lanes in each direction directing dense tanker and cargo traffic.
The strait carried an estimated 20 million barrels of oil per day in 2024, representing about one‑fifth of global petroleum liquids consumption.
Data from market intelligence reports published in January 2026 indicate that about 13 million barrels per day of crude flowed through the strait in 2025, accounting for approximately 31 percent of global seaborne crude shipments.
Iranian officials have repeatedly outlined the possibility of closing the waterway if the country’s vital national interests come under threat.
In June 2025, parliamentary members said shutting the strait remained among Tehran’s potential response options.
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They asserted that Iran could act if the United States officially entered the conflict then unfolding between Iran and Israel.
While those statements came months earlier, the political and security environment in early 2026 has revived similar concerns.
The combination of domestic unrest inside Iran and U.S. warnings about potential intervention has drawn renewed attention to Iran’s earlier threats regarding the strait.
Pressure Point for U.S
Because the global economy depends on the strait, even the threat of closure can raise global oil prices and increase pressure on Western governments.
Iran understands that any disruption would have an immediate global economic impact, giving it political leverage during crises.
The Strait has no meaningful alternative export routes for most Gulf oil.
According to the U.S Energy Information Administration, most volumes that transit the strait have no alternative means of exiting the region.
This gives Iran a unique tool, as shutting or disrupting the strait would immediately affect its neighbours and major oil importers like China, Japan, South Korea, and India.
According to the Atlantic Council, Iran holds an estimated 5,000 to 6,000 naval mines, giving it the ability to scatter large quantities of explosive devices across the narrow shipping lanes.
Iran also maintains an extensive coastal defense network of anti‑ship missiles positioned along its shoreline, covering the full width of the strait.
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Systems identified by analysts include Khalij‑e Fars ballistic missiles, Hormuz‑1 and Hormuz‑2 missiles, and C‑802 Noor cruise missiles, each capable of striking large, unarmored tankers moving through the corridor.
Defiant U.S
The United States opposes any Iranian move to disrupt or close the Strait of Hormuz, warning it could trigger a global oil and gas crisis.
The U.S maintains a strong naval presence to deter Iranian action and views a full closure as unlikely due to U.S capability to keep the route open.
The U.S is considering response options as tensions rise amid unrest in Iran, while urging international partners, including China, to pressure Iran against escalation.
U.S. warnings in late 2025 and early 2026 strictly point out that Iran must avoid actions that escalate conflict, especially after U.S strikes on Iranian nuclear facilities earlier in the conflict cycle.
The U.S still attributes instability in the region to Iran’s nuclear ambitions, support for regional militias, and confrontational behaviour in maritime zones.
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