King Charles III Addresses US Congress Amid Iran-US Tensions Over Strait of Hormuz

In a historic address to the US Congress on Tuesday, April 28, 2026, King Charles III called for renewed transatlantic unity as the United States and its allies navigate escalating tensions with Iran over the strategic Strait of Hormuz. The speech, only the second by a British monarch to Congress since Queen Elizabeth II in 1991, underscored the “special relationship” between the US and UK while acknowledging deep divisions over how to resolve the ongoing conflict.

Meanwhile, US President Donald Trump revealed that Iran has privately communicated its willingness to reopen the Strait of Hormuz—a critical global oil chokepoint—in exchange for the lifting of a US naval blockade. The proposal, which comes as Iran faces severe economic strain, has sparked debate within the Trump administration about potential diplomatic pathways forward.

The King’s Call for Unity Amid Global Crises

King Charles III’s 20-minute speech before a joint session of Congress marked a rare moment of diplomatic pageantry, arriving during a four-day state visit to commemorate the 250th anniversary of US independence. The monarch framed the address as an opportunity to “rededicate” the US-UK alliance to “selfless service” amid global challenges, including the war in Ukraine and the Iran conflict.

“America’s words carry weight and meaning,” the King stated, according to official transcripts. “Let our two countries uncover ways to come together, as we always have, in the service of our peoples and all the peoples of the world.”

The speech struck a careful balance, avoiding direct criticism of US policy while subtly addressing recent strains in the US-UK relationship. British Prime Minister Keir Starmer’s government has resisted full military involvement in the Iran conflict, limiting the use of UK bases like Diego Garcia for offensive operations and advocating for diplomatic solutions. Trump, however, has publicly questioned Britain’s resolve, drawing comparisons to Winston Churchill’s leadership during World War II.

AUKUS and Australia’s Role

A highlight of the King’s address was his praise for the AUKUS security pact, a trilateral agreement between the US, UK, and Australia aimed at countering China’s influence in the Indo-Pacific. “I am immensely proud to serve Australia as sovereign,” Charles said, earning one of 12 standing ovations during the speech. The remark underscored the UK’s commitment to the alliance, which has faced scrutiny over delays in delivering nuclear-powered submarines to Australia.

The King’s emphasis on AUKUS came as Australia announced a $1.5 million boost to its electric vehicle infrastructure, signaling broader economic cooperation between the three nations. However, the speech made no mention of Australia’s recent decision to exit OPEC, a move that has further strained global oil markets already disrupted by the Hormuz blockade.

Iran’s Proposal: Reopening the Strait of Hormuz

As King Charles addressed Congress, the Trump administration revealed that Iran had formally requested the lifting of the US naval blockade in the Strait of Hormuz—a 21-mile-wide waterway through which roughly 20% of the world’s oil supply passes. According to Trump, Iranian officials described their country as being in a “state of collapse,” citing economic hardship and international isolation as key factors in their willingness to negotiate.

“Iran has just informed us they are in a state of collapse and want the Strait reopened,” Trump told reporters on Monday. “We’re reviewing their proposal, but we’re not going to rush into anything.” The statement followed reports by The Associated Press that Iran had submitted a revised peace plan to mediators in Pakistan, though details of the proposal remain classified.

Economic and Geopolitical Stakes

The Strait of Hormuz has been a focal point of US-Iran tensions since 2019, when Iran began seizing oil tankers in response to US sanctions. The Trump administration imposed a naval blockade in 2025 after Iran allegedly attacked a US drone and sabotaged commercial vessels. The blockade has since disrupted global oil supplies, contributing to a 3.2% rise in global oil prices over the past year.

Iran’s economy has been particularly hard-hit, with inflation exceeding 40% and unemployment rising to 15%. The country’s leadership, however, has publicly dismissed Trump’s characterization of a “state of collapse,” framing the proposal as a strategic move rather than a surrender.

Analysts warn that any US decision to lift the blockade could be seen as a sign of weakness, potentially emboldening Iran’s regional allies, including Hezbollah and the Houthi rebels in Yemen. Conversely, maintaining the blockade risks further economic instability in Iran, which could lead to renewed attacks on shipping or escalation with Israel.

What Happens Next?

The Trump administration has not yet indicated whether it will accept Iran’s proposal. National Security Advisor Jake Sullivan told reporters that the White House is “weighing all options” but emphasized that any deal would require “verifiable commitments” from Iran to halt its nuclear program and end support for proxy groups.

Meanwhile, the UK has urged caution, with Foreign Secretary David Lammy stating that “diplomacy must be given a chance” but warning that “Iran’s track record on compliance is poor.” The European Union has also called for a multilateral approach, with EU foreign policy chief Josep Borrell suggesting that any agreement should include “mechanisms for independent verification.”

Key Takeaways

• Historic Speech: King Charles III became the second British monarch to address the US Congress, calling for unity amid global crises and praising the AUKUS alliance.
• Iran’s Proposal: Iran has asked the US to lift its naval blockade of the Strait of Hormuz, citing economic collapse, but the Trump administration remains skeptical.
• Global Impact: The blockade has disrupted 20% of the world’s oil supply, contributing to rising energy prices and economic instability in Iran.
• Diplomatic Hurdles: Any deal would require Iran to make verifiable commitments on its nuclear program and regional activities, which past negotiations have failed to secure.
• US-UK Divisions: The speech highlighted ongoing tensions between the US and UK over military involvement in the Iran conflict and the use of British bases.

FAQ

Why is the Strait of Hormuz so vital?

The Strait of Hormuz is the world’s most critical oil chokepoint, with roughly 20% of global oil supplies passing through it daily. Any disruption to shipping in the strait can cause significant spikes in oil prices, affecting economies worldwide.

What is the US naval blockade?

The US imposed a naval blockade in 2025 after a series of attacks on commercial vessels and a US drone, which Washington attributed to Iran. The blockade aims to prevent Iran from exporting oil and importing weapons but has also disrupted global trade.

Has Iran made similar proposals before?

Yes. Iran has previously offered to negotiate the reopening of the strait in exchange for sanctions relief, most notably during the 2015 nuclear deal (JCPOA). However, the Trump administration withdrew from the JCPOA in 2018 and reimposed sanctions, leading to the current standoff.

What is AUKUS?

AUKUS is a trilateral security pact between the US, UK, and Australia, announced in 2021. Its primary focus is to counter China’s growing influence in the Indo-Pacific by providing Australia with nuclear-powered submarines and enhancing military cooperation.

How has the UK responded to the Iran conflict?

The UK has taken a more cautious approach than the US, advocating for diplomatic solutions and limiting its military involvement. Prime Minister Keir Starmer’s government has resisted using UK bases for offensive operations against Iran, straining relations with the Trump administration.

Looking Ahead

As King Charles III’s state visit concludes, the focus shifts back to the Middle East, where the fate of the Strait of Hormuz hangs in the balance. The coming weeks will be critical in determining whether the US and Iran can find a diplomatic off-ramp—or if the blockade will continue to fuel a broader regional crisis.

For now, the King’s speech serves as a reminder of the enduring, if sometimes strained, alliance between the US and UK. As Charles noted, “Time and again, our two countries have found ways to come together.” Whether that unity can extend to resolving the Iran conflict remains to be seen.