Strait of Hormuz declared open as Israel-Lebanon truce holds; Trump says Iran deal ‘very close’

Iran’s Foreign Minister Abbas Araghchi announced on 17 April 2026 that the Strait of Hormuz is completely open for all commercial vessels for the remaining period of the ceasefire in the 2026 Iran war. Araghchi made the announcement on social media, stating that the opening was made in direct alignment with a concurrent 10-day ceasefire agreement between Israel and Lebanon, and that ships would be required to use a coordinated route as previously announced by Iran’s Ports and Maritime Organisation. The announcement marked the most significant development yet in international efforts to restore commercial navigation through the world’s most strategically critical oil and gas export corridor.

United States President Donald Trump responded within hours on his Truth Social platform, posting: “IRAN HAS JUST ANNOUNCED THAT THE STRAIT OF IRAN IS FULLY OPEN AND READY FOR FULL PASSAGE. THANK YOU!” Speaking to reporters outside the White House, Trump said the United States is “very close” to a peace deal with Iran. However, Trump simultaneously confirmed that the United States naval blockade of Iranian ports “will remain in full force” until the two sides reach a comprehensive peace agreement, adding that negotiations “should go very quickly.” The co-existence of an Iranian opening of the Strait of Hormuz for commercial transit and a continuing United States blockade of Iranian ports created an ambiguous operational environment for international shipping operators assessing whether commercial transits could safely and fully resume.

Financial markets responded immediately to Araghchi’s announcement. Global stock indices surged and oil prices declined on the news. Practical uncertainty remained for shipping operators, however, because of ongoing concerns about sea mines that Iran laid in the waterway during the conflict. Iranian authorities acknowledged in earlier reporting that Iran had lost track of some mines planted in the Strait of Hormuz, complicating any rapid resumption of normal traffic.

Iran’s Deputy Foreign Minister separately stated that Tehran rejects any temporary ceasefire framework and is seeking a comprehensive end to the war across the entire region. The statement pointed to an internal Iranian preference for a broader regional settlement over a series of partial or time-limited agreements.

What is the Strait of Hormuz and why does it matter for global energy and shipping markets?

The Strait of Hormuz is a narrow waterway lying between Iran to the north and the Sultanate of Oman and the United Arab Emirates to the south. In peacetime conditions prior to the 2026 conflict, approximately 20 to 25 percent of the world’s seaborne oil trade and roughly 20 percent of the world’s liquefied natural gas passed through the waterway. The strait connects the oil-producing states of the Persian Gulf, including Saudi Arabia, Iraq, Kuwait, the United Arab Emirates, Qatar, and Bahrain, to global export markets. A prolonged closure of the Strait of Hormuz therefore carries severe and immediate consequences for global energy supply chains, commodity prices, and shipping insurance markets.

Since Iran’s closure of the strait beginning 28 February 2026, Brent crude oil prices surged by between 10 and 13 percent in early trading, with market observers warning prices could reach 100 United States dollars per barrel or higher if disruptions persisted. Approximately 10 million barrels per day of oil production had been restricted by more than 90 percent as a result of Iran’s control over the waterway. International Energy Agency Director Fatih Birol warned on 16 April 2026 that Europe had approximately six weeks of jet fuel reserves remaining and that flight cancellations could follow if the strait was not reopened within weeks.

How did the 2026 Iran war begin and what events led to the closure of the Strait of Hormuz?

The United States and Israel launched what Trump described as “major combat operations” against Iran on 28 February 2026, targeting military and government sites. The strikes killed Iran’s supreme leader and a number of other Iranian officials. Iran responded with missile and drone strikes against Israel, United States military bases, and United States-allied states in the Middle East, and subsequently moved to close the Strait of Hormuz. Iran’s Islamic Revolutionary Guard Corps issued warnings forbidding passage through the strait and carried out at least 21 confirmed attacks on merchant ships. Iran also reportedly laid sea mines in the waterway. Major container shipping companies including Maersk, CMA CGM, and Hapag-Lloyd suspended all transits through the strait.

A two-week ceasefire between the United States and Iran was agreed on 8 April 2026, mediated by Pakistan, with the ceasefire framework reportedly negotiated between Pakistani Army Chief Field Marshal Asim Munir, United States Vice President JD Vance, United States Special Envoy Steve Witkoff, and Iranian Foreign Minister Abbas Araghchi. The ceasefire called for an immediate halt to hostilities, the reopening of the Strait of Hormuz, and a 15 to 20 day period of negotiations. However, the strait remained largely closed in the days following the agreement. By 9 April 2026, ships were again being prevented from transiting the waterway. Abu Dhabi National Oil Company Chief Executive Officer Sultan Al Jaber stated that the strait remained closed, with approximately 230 loaded oil tankers waiting inside the Gulf.

Following the collapse of direct United States-Iran talks in Islamabad, Trump declared a United States naval blockade of the Strait of Hormuz, targeting ships entering or leaving Iranian ports and coastal areas while stating that freedom of navigation would be preserved for vessels transiting to and from non-Iranian ports. United States Central Command said the blockade would be enforced inside Iran’s territorial seas and in international waters. Chairman of the Joint Chiefs of Staff Air Force General Dan Caine stated on 16 April 2026 that more than 10,000 sailors, marines, and airmen, together with over a dozen ships and dozens of aircraft, were carrying out the blockade, and that the United States Joint Force remained prepared to resume major combat operations at a moment’s notice. Caine described the military effort as “Operation Epic Fury.”

How did Israeli military operations in Lebanon complicate Strait of Hormuz ceasefire efforts between the United States and Iran?

Israel’s sustained military operations against Hezbollah in Lebanon were a repeated source of friction throughout the Iran ceasefire period. Iranian officials consistently linked continued Israeli attacks on Lebanon to Iran’s posture on the Strait of Hormuz, including pausing traffic through the waterway on at least one occasion following Israeli strikes on Lebanon. Iran’s Islamic Revolutionary Guard Corps warned of a severe response if attacks on Lebanon did not stop.

Israeli Prime Minister Benjamin Netanyahu maintained throughout that Lebanon was not covered by the Iran ceasefire agreement, a position backed by Trump and Vance. Netanyahu separately stated that the Israeli invasion and assault on Lebanon had not yet been completed and that the Israeli Defence Forces would continue to hold all areas it had cleared and captured.

The 10-day Israel-Lebanon ceasefire that came into effect at 5 p.m. Eastern Time on 16 April 2026 removed one major friction point from Iran’s stated justification for restricting the Strait of Hormuz. Iran’s Foreign Minister Araghchi explicitly framed the Strait of Hormuz opening announcement as being made in line with the Lebanon ceasefire. United States President Trump announced the Israel-Lebanon ceasefire on Truth Social, stating that Lebanese President Joseph Aoun and Israeli Prime Minister Netanyahu had agreed to the agreement following a meeting in Washington, D.C. on 14 April 2026, facilitated by Secretary of State Marco Rubio. The meeting was the first formal diplomatic encounter between Israel and Lebanon in 34 years.

Under the Israel-Lebanon ceasefire agreement, Israel stated it would not carry out offensive military operations against Lebanese targets, while Lebanon committed to taking meaningful steps to prevent Hezbollah from carrying out attacks on Israeli targets. The agreement contained a provision allowing Israel to take measures in self-defence against planned, imminent, or ongoing attacks. The ceasefire could be extended by mutual agreement if there was progress in negotiations and Lebanon demonstrated its ability to assert sovereignty. Israeli Defence Forces continued to strike what it said were Hezbollah rocket launch positions in Lebanon after the ceasefire took effect, citing what Israel said was a Hezbollah rocket launch. Tens of thousands of displaced Lebanese people began moving south towards their homes in the hours following the ceasefire announcement.

The death toll from the conflict reached severe levels. Iran’s forensics chief reported more than 3,300 people killed in Iran since United States-Israeli strikes began on 28 February 2026. The death toll in Lebanon reached 2,196 by 16 April 2026, according to Lebanon’s National News Agency. Thirty-two people were killed in Gulf states, 23 in Israel, and 13 United States service members were killed in combat. The Haret Hreik area of Beirut’s southern suburbs sustained 62 confirmed Israeli strikes over the preceding six weeks, with 26 buildings completely destroyed, according to Haret Hreik Deputy Mayor Sadek Slim.

What role have allied governments and international institutions played in the effort to reopen the Strait of Hormuz and end the 2026 Iran war?

The diplomatic effort to reopen the Strait of Hormuz has engaged a broad range of international actors. A virtual summit co-hosted by France and the United Kingdom, involving approximately 40 countries but not including the United States, was convened to advance collective plans to restore freedom of navigation in the waterway. Secretary of State Marco Rubio spoke on 16 April 2026 with United Kingdom Foreign Secretary Yvette Cooper to coordinate next steps. British Prime Minister Keir Starmer publicly stated that the United Kingdom is not supporting the United States blockade of Iranian ports and that reopening the strait was his government’s principal objective.

European Commission President Ursula von der Leyen described the ongoing closure of the Strait of Hormuz as “greatly damaging” and stated that the restoration of freedom of navigation was “of paramount importance.” South Korea’s Ministry of Oceans and Fisheries confirmed that one South Korean vessel had transported crude oil through the Red Sea for the first time since the Strait of Hormuz was effectively closed, having been loaded at Saudi Arabia’s Yanbu port and exiting via an alternative route.

Pakistan, which brokered the 8 April 2026 Iran-United States ceasefire and hosted the subsequent Islamabad talks, remained actively engaged in efforts to broker a second round of direct talks. Pakistani Prime Minister Shehbaz Sharif welcomed the Israel-Lebanon ceasefire, praised Trump’s diplomatic efforts, and reaffirmed Pakistan’s support for Lebanese sovereignty and territorial integrity. Pakistan’s Foreign Ministry spokesman Tahir Andrabi described Pakistan as being recognised for its constructive diplomatic engagement in supporting de-escalation. Pakistani Army Chief Field Marshal Asim Munir conducted a separate trip to Iran that week. A second round of direct United States-Iran talks was expected to be scheduled.

United Nations Secretary-General António Guterres welcomed the Israel-Lebanon ceasefire, praising the United States for helping secure the agreement, and urged all parties to fully respect the ceasefire and comply with international law at all times. Guterres expressed hope that the 10-day ceasefire would pave the way for negotiations towards a long-term solution to the Lebanon conflict and contribute to broader Middle East peace efforts.

In the United States Congress, the Republican-led House of Representatives on 16 April 2026 narrowly failed to adopt a war powers resolution that sought to curtail Trump’s military actions in Iran, by a vote of 213 to 214. Representative Warren Davidson of Ohio voted present. Representative Thomas Massie of Kentucky was the only Republican to vote in favour of the resolution. Representative Jared Golden of Maine was the only Democrat to vote against it. The United States Senate had also failed to advance a similar war powers resolution earlier that week. The votes reflected limited but notable congressional resistance to the continuation of military operations without a formal declaration of war.

What are the key takeaways from Iran’s declaration that the Strait of Hormuz is completely open during the ceasefire?

• Iranian Foreign Minister Abbas Araghchi declared on 17 April 2026 that the Strait of Hormuz is completely open for all commercial vessels for the remaining period of the ceasefire, explicitly linking the decision to the concurrent Israel-Lebanon ceasefire, with vessels required to use a coordinated route as designated by Iran’s Ports and Maritime Organisation.
• United States President Trump welcomed the announcement but confirmed the United States naval blockade of Iranian ports will remain in force until a comprehensive peace agreement is reached, leaving an ambiguous operational environment for international commercial shipping.
• The announcement followed a 10-day Israel-Lebanon ceasefire that took effect on 16 April 2026, brokered through United States facilitation and the first formal Israel-Lebanon diplomatic engagement in 34 years, removing a key Iranian grievance that had repeatedly disrupted Strait of Hormuz access during the ceasefire period.
• Practical uncertainties persist for commercial shipping operators due to sea mines reportedly laid by Iran in the Strait of Hormuz during the conflict, with Iranian authorities acknowledged to have lost track of some mines.
• The broader 2026 Iran war ceasefire framework remains unresolved, with Iran’s Deputy Foreign Minister rejecting temporary arrangements and seeking a comprehensive regional settlement, while a second round of direct United States-Iran talks is expected to be scheduled, with Trump stating a peace deal is “very close.”