US Military's Bold Move: Blockade on Iranian Ports Sparks Tensions in the Gulf

Tensions in the Persian Gulf escalate as the US military announces a blockade on Iranian ports, aiming to compel Tehran to reopen the Strait of Hormuz. In response, Iran threatens retaliation, raising concerns about the potential collapse of the ceasefire and its impact on global oil prices. With negotiations stalled and both sides issuing warnings, the situation remains precarious. The blockade could have far-reaching effects on the global economy, as oil prices soar and shipping routes face uncertainty. As the conflict continues, the international community watches closely for developments.

By Narendra Chaudhary Apr 13, 2026, 22:24 IST

Escalating Tensions in the Persian Gulf

Cairo: The United States military has announced plans to impose a blockade on all Iranian ports starting Monday, aiming to compel Tehran to reopen the vital Strait of Hormuz and agree to a peace settlement. In retaliation, Iran has issued threats targeting ports in the Persian Gulf and the Gulf of Oman, particularly those allied with the US.

This situation has set the stage for a significant confrontation that could have dire implications for the global economy, raising concerns that the fragile ceasefire might collapse and hostilities could reignite. Efforts to reach a lasting resolution to the conflict, which escalated on February 28 with US and Israeli strikes against Iran, failed to yield results over the weekend, and there has been no indication of when negotiations might resume.

It remains uncertain whether the blockade commenced as scheduled at 10 a.m. EDT (2 p.m. GMT). Just prior, a notice from the United Kingdom Maritime Trade Operations agency, responsible for maritime security, indicated that the restrictions would encompass "the entirety of the Iranian coastline, including ports and energy infrastructure."

The notice further stated that transit through the strait "to or from non-Iranian destinations is not reported to be impeded by these measures," but warned that vessels "may encounter military presence" in the strait.

Iran's effective closure of the strait, a crucial passage for 20% of the world's traded oil during peacetime, has led to soaring oil prices, significantly increasing the costs of gasoline, food, and other essential goods beyond the Middle East. Tehran has permitted certain ships deemed friendly to pass through while imposing hefty fees, prompting accusations that it is leveraging the global economy for its advantage.

Some experts express skepticism regarding the US's ability to restore normal shipping solely through military force, and the feasibility and risks associated with the blockade remain unclear.

The central question is which side can withstand the most economic pressure: Will the blockade render Iran's economy untenable, forcing it to yield? Or will it drive global oil prices so high that US President Donald Trump is compelled to retreat?

Potential Global Impact of the Blockade

The US military's Central Command has declared that the blockade will apply to vessels from all nations entering or leaving Iranian ports and coastal areas, encompassing all of Iran's ports along the Persian Gulf and Gulf of Oman.

CENTCOM's decision to allow ships traveling between non-Iranian ports to navigate the strait represents a de-escalation from Trump's earlier threats to completely blockade the waterway.

In a social media post shortly after the blockade was set to begin, Trump claimed that Iran's navy was "lying at the bottom of the sea, completely obliterated," but cautioned that Tehran still possesses "fast attack ships," warning that any approaching these ships would be "immediately ELIMINATED."

Iran has responded with its own threats, asserting that "Security in the Persian Gulf and the Sea of Oman is either for everyone or for NO ONE," as reported by the Islamic Republic of Iran Broadcasting. A statement from the Iranian military and the Revolutionary Guard declared that "NO PORT in the region will be safe."

These threats have disrupted the limited ship traffic that had resumed in the strait since the ceasefire, according to a report from Lloyd's List Intelligence. Marine tracking data indicates that over 40 commercial vessels have crossed since the ceasefire began last week, a significant drop from the usual 100 to 135 daily passages before the conflict.

The blockade is likely intended to intensify pressure on Iran, which has exported millions of barrels of oil since the onset of the war, much of it likely transported through clandestine routes that evade Western sanctions and oversight.

However, the repercussions will extend far beyond Iran. The price of Brent crude oil, the global benchmark, surged by 7% to approximately $102 per barrel on Monday, compared to around $70 per barrel prior to the conflict.

British Prime Minister Keir Starmer announced that he would convene a summit with French President Emmanuel Macron this week to advance international efforts to resolve the conflict and reopen the strait. Starmer emphasized that it must be reopened without conditions or tolls.

Iran's Stance: Prepared for Conflict

High-ranking Iranian officials have issued threats of retaliation. Ebrahim Rezaei, a spokesperson for the Iranian parliament's National Security Commission, dismissed US warnings about a potential blockade as "more bluffing than reality," while cautioning that Tehran is ready to respond if the situation escalates militarily.

"It will complicate the current situation for Trump and create more turbulence in the market, which he is already frustrated with. We may also reveal other strategies that we have not yet employed," he stated in a post on X.

Iranian parliament speaker Mohammad Bagher Ghalibaf directly addressed Trump, stating, "If you fight, we will fight."

Ceasefire Holds Amid Stalled Negotiations

The threat of a blockade emerged following extensive US-Iran ceasefire discussions in Pakistan that concluded without an agreement on Saturday.

US Vice President JD Vance noted that the talks faltered after Iran declined to accept American conditions regarding its nuclear program.

Iran maintains that its nuclear ambitions are peaceful, yet it has taken steps that could enable it to develop a nuclear weapon, including enriching uranium to near weapons-grade levels and advancing long-range missile capabilities.

Iranian negotiators were unable to agree to all US "red lines," according to a US official who requested anonymity. These red lines included commitments to never acquire a nuclear weapon, halt uranium enrichment, dismantle key enrichment facilities, allow retrieval of highly enriched uranium, reopen the strait, and cease funding for armed proxies in the region such as Hamas, Hezbollah, and the Houthis.

Iran's ambassador to India, Mohammad Fathali, indicated that the primary sticking points for Tehran were its nuclear program, war reparations, and sanctions relief.

Neither Iran nor the US has clarified what will occur after the ceasefire expires on April 22. The ongoing conflict has resulted in at least 3,000 fatalities in Iran, 2,089 in Lebanon, 23 in Israel, and over a dozen in Gulf Arab states, while damaging infrastructure across multiple countries.

Pakistani Foreign Minister Ishaq Dar announced that his country will seek to facilitate new dialogue in the coming days.

Turkish Foreign Minister Hakan Fidan, whose nation has supported mediation efforts, suggested that the ceasefire could be extended for an additional 45 to 60 days to allow for further negotiations.