Strait of Hormuz blockade and other major naval sieges in modern times

President Donald Trump described the US Navy's actions enforcing a blockade of Iranian ports and the Strait of Hormuz as being "like pirates," stating it was a "very profitable business" due to seizing ships and cargo. This blockade, imposed on April 13th, followed a ceasefire between the US and Iran after mutual attacks. Trump made these remarks at a rally in Florida, while also expressing dissatisfaction with Iran's latest peace proposal and warning of military action if negotiations fail. Iran's military headquarters responded by stating a resumption of war is likely, citing a perceived lack of US commitment to agreements. The Strait of Hormuz is a critical global oil and gas transit route.

During a rally in Florida, Donald Trump described a US Navy operation to seize a ship amid an American blockade of Iranian ports, stating the navy acted "like pirates." This occurred as legal experts expressed concerns over Iran's blockade of the Strait of Hormuz and its intention to charge passage fees. Iran effectively closed the strait, a crucial oil and gas route, following a US-Israeli air campaign. The US announced its blockade of Iranian ports last month after peace talks failed. The US Central Command has redirected numerous vessels to enforce compliance with the blockade, which the Pentagon stated will continue indefinitely and applies to all ships entering or leaving Iranian ports. Iran has pledged to maintain its control of the strait as long as the US blockades its ports.

Global famine fears are escalating due to the ongoing crisis at the Strait of Hormuz, which analysts warn could lead to an eight-year disruption similar to the Suez Canal closure of 1967-1975. The U.S. naval blockade of Iranian ports and Iran's effective closure of the Strait have strained fragile food supply chains and driven up prices. While a diplomatic resolution could reopen the Strait within weeks, it would still take months for supply chains to normalize. In the worst-case scenario, the Strait could remain closed for an extended period, significantly impacting global trade and food security, particularly due to disruptions in fertilizer transport.

Iran's national currency, the rial, has hit new lows against the US dollar, trading at over 1.81 million to the dollar on Wednesday. This sharp decline is attributed to a US naval blockade and existing sanctions, which are impacting Iran's trade, particularly with China and the UAE. The currency's value has plummeted significantly over the past year, exacerbated by unchecked inflation and economic mismanagement. In response, Iranian authorities are attempting to mitigate the impact by empowering border provinces for essential goods imports and allocating funds for food purchases. The US Central Command stated the blockade has effectively cut off Iran's economic trade.

The U.S. Navy has implemented a sea blockade against Iran, halting economic trade in and out of the country by sea, beginning Monday, according to U.S. Central Command. The blockade, enforced in the Gulf of Oman beyond the Strait of Hormuz, applies to all vessels entering or leaving Iranian ports, regardless of nationality. U.S. forces are intercepting vessels after they leave Iranian facilities and clear the Strait of Hormuz, forcing them to turn around. Shipping data indicates that Iran-linked or sanctioned vessels have altered course, stopping or turning around after leaving the Gulf. The U.S. military is using various methods beyond standard tracking beacons to identify ships originating from Iranian ports.

Donald Trump announced that the U.S. Navy would begin a naval blockade of the Strait of Hormuz, targeting vessels that have paid tolls to Iran. According to the U.S. Central Command (Centcom), the blockade would be enforced impartially against vessels entering or departing Iranian ports and coastal areas, starting Monday at 10:00 EDT. The U.S. Navy Commander's handbook defines a blockade as preventing vessels and aircraft from entering or exiting specified areas controlled by an enemy state. Trump stated the blockade would be effective soon and involve other countries, with NATO potentially assisting in clearing mines. The UK will not be involved in the blockade. The stated aim is to ensure free passage through the Strait of Hormuz, which Trump accuses Iran of hindering.

On April 14, 2026, the United States implemented a naval blockade of Iran to pressure the country into accepting terms to end their ongoing war. Iran's armed forces have condemned the blockade as an illegal act. The blockade threatens Iran's oil revenue, as approximately 80% of its exports pass through the Strait of Hormuz. While Iran had been controlling access to the Strait, allowing only select countries to pass, it continued to export its own energy products. In March and early April, Iran's oil exports actually increased, reaching 1.84 million barrels per day in March. The price of Iranian oil has remained above $90 per barrel in the past month.

Oil prices surged on Sunday after the U.S. announced it would begin blockading Iranian ports on Monday. U.S. crude rose 8% to $104.24 a barrel, and Brent crude increased 7% to $102.29. The blockade, enforced by U.S. Central Command, aims to restrict access to all Iranian ports on the Persian Gulf and Gulf of Oman but will allow passage through the Strait of Hormuz for ships traveling between non-Iranian ports. The Strait of Hormuz is a crucial waterway for global oil shipping, with approximately a fifth of the world's traded oil passing through it daily. Analysts suggest the blockade could further tighten oil markets and potentially influence ongoing negotiations with Iran, though concerns exist about the potential for increased economic strain worldwide.

UK Chancellor Rachel Reeves criticized the US decision to engage in war with Iran without a clear exit strategy, stating it has led to the blockage of the Strait of Hormuz and threatens global economic stability. Speaking before an International Monetary Fund meeting in Washington, Reeves expressed frustration that the conflict, initiated under Donald Trump, is negatively impacting families in the UK and worldwide. She highlighted that the UK is projected to suffer the largest economic impact among G7 nations due to the war, with reduced GDP growth forecasts. Reeves affirmed Prime Minister Keir Starmer's decision to keep the UK out of the conflict, while acknowledging pressure to mitigate the war's impact on UK households through energy bill assistance and potential fuel duty adjustments. Starmer has established a committee to address the war's effects on Britain.

Following the failure of peace talks, the United States initiated a naval blockade of Iranian maritime trade on April 13th, according to a US Central Command announcement. The blockade targets all maritime traffic entering and exiting Iranian ports. This action follows a declaration by President Trump. Despite losses suffered by the Iranian navy, Chinese analysts suggest that Iran's small, fast-attack boats may pose a challenge to the US Navy's blockade operations in the Strait of Hormuz. The blockade was launched after peace talks in Pakistan failed.

The US military reported striking two boats in the eastern Pacific Ocean on Saturday, killing five people and leaving one survivor. These strikes are part of the Trump administration's campaign against alleged drug traffickers in Latin America, bringing the total deaths from such actions to at least 168 since September. US Southern Command stated the boats were targeted along known smuggling routes, but did not provide evidence of drug trafficking. The US Coast Guard is coordinating the search and rescue for the survivor. While Trump has justified these actions as necessary to combat drug flow, critics question their legality and effectiveness, especially considering that fentanyl, a major contributor to overdoses, is primarily trafficked overland from Mexico. The strikes continue amidst US military operations in the Middle East and a planned naval blockade of Iranian ports.

The US military conducted another strike on a vessel in the eastern Pacific, killing two people. US Southern Command (SOUTHCOM) stated the boat was traveling along known drug-trafficking routes and was targeted with a "lethal kinetic strike" on the orders of US Commander General Francis F. Donovan. This attack follows a similar incident the previous day where the US military destroyed two boats, killing five. Since September, the US military has killed at least 170 people in strikes on vessels in the eastern Pacific and Caribbean, alleging links to Latin American drug cartels. SOUTHCOM claims the individuals killed are "narco-terrorists," but has not provided evidence.

Peace talks between the US and Iran are reportedly underway in Islamabad, Pakistan, mediated by Pakistani officials. These talks occur amidst ongoing tensions, with Israel reaffirming its commitment to countering Iran. The US claims Iran is struggling to locate mines it deployed in the Strait of Hormuz, a crucial waterway blockaded by Iran since the start of the war. The UK will host a meeting next week with multiple countries to discuss restoring free movement through the Strait of Hormuz, which has significantly impacted the global economy. The UK opposes Iran's proposal to charge tolls for passage through the strait as part of ceasefire negotiations.

The United States and Iran are preparing for peace talks in Islamabad, Pakistan on April 10, 2026, mediated by Pakistan, despite modest expectations for a lasting agreement. The ceasefire, based on Iran's 10-point proposal, reflects Iranian terms more than American, including continued Iranian control of the Strait of Hormuz. The US appears to have tacitly acknowledged Iran's authority over the strait and its upper hand in setting negotiation terms. Iran's demands include recognition of its control over the strait, acceptance of uranium enrichment, the lifting of all US and UN sanctions, and a US military withdrawal from the region. Even if the talks fail to produce a deal, the ceasefire may prevent a return to full-scale war.

A high-level Iranian delegation, including Parliament Speaker Ghalibaf and Foreign Minister Araghchi, arrived in Islamabad on Saturday for direct talks with the US. These negotiations mark the first direct engagement between the two nations since hostilities began six weeks prior. The talks aim to solidify a fragile two-week ceasefire and ultimately end the conflict. Despite expressing "goodwill," Ghalibaf emphasized Iran's deep mistrust of the US, citing past betrayals and broken promises during previous negotiations. He stated that while Iran seeks a genuine agreement that secures its rights, it remains wary of potential US deceit and is prepared to rely on its own capabilities.

Following a US-Iran ceasefire in April 2026, Israel launched air strikes on Lebanon, resulting in over 250 deaths and prompting Iran to reimpose its Strait of Hormuz blockade. The dispute centers on whether the ceasefire included Israel's actions in Lebanon, with Pakistan claiming it did and Israel denying it. The US sided with Israel, calling the violence a separate issue. The ceasefire, brokered without Israel's active involvement, has led to political pressure on Israeli Prime Minister Netanyahu as none of Israel's war aims were achieved. Negotiations based on Iran's 10-point peace plan are set to begin, potentially allowing Iran to retain its nuclear stock and benefit financially.