Strait of Hormuz Tensions Rise After US-Israel Strikes on Iran

The Strait of Hormuz, a critical chokepoint for global oil supplies, is facing heightened tensions following a joint military operation by the United States and Israel targeting sites across Iran on Saturday, February 28, 2026. The strikes, carried out in response to Iran’s nuclear program, have prompted fears of potential disruptions to oil flows and a surge in energy prices. Iran has repeatedly threatened to close the strait during times of crisis, and recent actions suggest an increased risk of such a blockade.

Strategic Importance of the Strait of Hormuz

The Strait of Hormuz links the Persian Gulf to the Indian Ocean, situated between Iran and Oman. Its narrow width – approximately 50 kilometers (30 miles) – and shallow depths make it vulnerable to being blocked. The US Energy Information Administration describes it as the “world’s most important oil transit chokepoint.”

Approximately 20 million barrels of crude oil, condensate, and fuels are estimated to transit the strait daily, according to Vortexa, an energy and freight market consultant. Qatar, a major producer of liquefied natural gas (LNG), as well relies heavily on the strait for its exports.

Recent Escalations and Iranian Threats

On Saturday, February 28, 2026, the US and Israel launched a joint operation targeting regime sites and military facilities across Iran, following failed nuclear talks. The Latest York Times reports that Iran has vowed retaliation.

Iran has a history of threatening to close the Strait of Hormuz during periods of heightened tension. A senior naval commander of Iran’s Revolutionary Guards reiterated this threat in late January. In February, Iran temporarily closed the strait for live-fire military drills during indirect negotiations with the United States in Geneva over its nuclear program. The Independent reported this was the first time Iran had announced the closure of the waterway.

Despite frequent warnings, Iran has never fully acted on its threats to block the strait, although it briefly closed part of it for “safety” reasons during recent military drills.

Potential Impact of a Blockade

A lasting blockade or significant disruption to oil flows through the Strait of Hormuz could trigger a sharp spike in crude prices, impacting the global economy. DW notes that oil prices already rose to multi-month highs as traders reacted to the US military strikes.

The strait is dotted with islands, including Iranian islands of Hormuz, Qeshm, and Larak, and disputed islands between the UAE and Iran (Greater Tunb, Lesser Tunb, and Abu Mussa) which provide strategic vantage points.

Key Takeaways

• The Strait of Hormuz is a vital global oil transit route.
• Recent US-Israel strikes on Iran have increased tensions in the region.
• Iran has repeatedly threatened to close the strait, and recent actions suggest a heightened risk.
• A blockade could significantly disrupt oil supplies and impact the global economy.