By Elsie Kamsiyochi

The Strait of Hormuz has emerged as Iran’s most powerful strategic asset, overtaking even its long-disputed nuclear programme as the country’s top national priority following months of conflict with the United States and its allies. Iranian leaders now view control of the narrow waterway as the strongest guarantee of their security, influence and bargaining power, a shift that is reshaping diplomacy and raising fears of renewed military confrontation in one of the world’s most critical energy corridors.

The latest tensions erupted after Iranian forces reportedly opened fire on ships travelling through the Strait without Tehran’s approval, triggering an exchange of fire with U.S. forces and placing last month’s fragile interim peace agreement under severe strain. The incident highlighted just how central the waterway has become to Iran’s post-war strategy.

For decades, Iran repeatedly threatened to close the Strait of Hormuz during periods of heightened tensions but rarely acted on those warnings. Officials understood that shutting the route would severely disrupt global oil markets, anger neighbouring Gulf states and damage Iran’s own economy. As a result, the threat was generally viewed as a last-resort option rather than a practical policy.

That calculation has now changed dramatically.

According to senior Iranian sources, Tehran believes control of the Strait is now its greatest source of leverage against Washington and the wider international community. Iranian officials argue that their ability to regulate access to the waterway gives them influence far beyond what their nuclear programme alone could achieve.

The Strait of Hormuz is one of the world’s most strategically important maritime passages. Roughly one-fifth of global oil supplies pass through the narrow channel connecting the Persian Gulf to international waters. Any disruption to shipping there can immediately send energy prices soaring, disrupt global supply chains and place enormous pressure on governments and financial markets worldwide.

Iranian lawmakers have openly described the Strait as the country’s “golden weapon,” insisting that no government would voluntarily surrender control over such a valuable strategic advantage.

Officials in Tehran believe the United States was ultimately forced back to negotiations because of the massive economic consequences caused by disruptions to shipping through Hormuz. That belief has strengthened support within Iran’s political and military leadership for maintaining strict authority over the waterway.

Although there were internal discussions about whether Tehran risked pushing too far, senior officials reportedly concluded that relinquishing influence over the Strait would weaken Iran’s negotiating position and encourage further demands from Washington on issues such as missile development and nuclear activities.

The disagreement now centres on how both countries interpret last month’s interim peace agreement.

Under the memorandum signed after weeks of conflict, Iran agreed to use its best efforts to ensure the safe passage of commercial vessels for a 60-day period without imposing transit charges.

Iranian negotiators argue that this language effectively acknowledges Tehran’s right to manage the Strait of Hormuz, even if it temporarily suspends fees or restrictions. The United States and Gulf Arab nations strongly reject that interpretation, insisting the agreement simply requires Iran to facilitate safe navigation rather than exercise sovereign control over international shipping.

This conflicting interpretation has become one of the biggest obstacles to rebuilding trust between the two sides.

Iran’s increasingly uncompromising position is also rooted in years of deep mistrust toward Washington. Iranian leaders remain sceptical of U.S. commitments after the collapse of previous nuclear agreements and the outbreak of the recent war, believing that concessions on Hormuz would only encourage additional American demands.

As a result, Tehran has elevated the Strait above nearly every other negotiating issue.

While Iran’s nuclear programme dominated relations with the United States for more than two decades and triggered sweeping international sanctions, it has now been pushed into the background during current diplomatic efforts. Discussions over uranium enrichment and Iran’s nuclear activities have been postponed for future negotiations.

Iranian officials have reportedly informed negotiators that they will not resume substantive talks on the nuclear issue until Washington first accepts Tehran’s authority over the Strait of Hormuz.

Analysts say both sides believe they emerged from the conflict with significant advantages. Iran believes its actions demonstrated the enormous leverage it holds over global energy markets, while the United States maintains that military pressure forced Tehran into negotiations. This mutual confidence has made compromise increasingly difficult.

Experts warn that unless both governments can bridge their opposing interpretations of the interim agreement, the Strait of Hormuz could become an even greater source of international tension than Iran’s nuclear programme. With global energy security tied directly to the narrow shipping lane, any future confrontation risks affecting not only the Middle East but economies around the world.

For now, Tehran appears determined to make control of Hormuz the foundation of its foreign policy, signalling that future negotiations with the United States will begin not with nuclear enrichment, but with who ultimately controls one of the world’s most important waterways.

Source Reuters

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