Trump threatened further attacks on Iran if it closes the Strait of Hormuz during peace talks in Switzerland.

President Donald Trump threatened another attack on Iran if it continues to close the Strait of Hormuz, while the US and Iran opened talks for the first time under a temporary peace agreement.

On Sunday, June 21, 2026, at 9:12 PM, CNBC reported that: U.S. President Donald Trump threatened to resume war with Iran on Sunday. Although Vice President J.D. Vance met with Iranian officials in the first round of talks under the interim peace agreement, the atmosphere of the negotiations was tense after Tehran announced it had closed the Strait of Hormuz again.

The talks at the Qatari-owned mountain resort of Burgenstock in Switzerland marked the first meeting under a memorandum of understanding reached last week to end the war and extend the fragile ceasefire that has been in effect since April by at least 60 days.

The agreement stipulates the reopening of the Strait of Hormuz, a vital route for global energy shipments, and the end of all fighting, including in Lebanon, where Israel continues its fierce offensive, while Iran's ally Hezbollah fires on Israeli targets.

Iran says the United States has failed to fulfill its promise to end the fighting in Lebanon, and announced over the weekend that it had once again suspended shipping through the Strait of Hormuz. Furthermore, Sunday's talks will not cover key issues such as Iran's nuclear program.

"Iran must immediately stop the heavily funded proxy groups in Lebanon from causing problems." Trump posted on Truth Social, referencing Hezbollah. "If they don't stop, we will launch another heavy attack on Iran, just like we did last week, but this time with greater force."

Fox News reported that Trump revealed in an interview that he warned Iranian officials that if the Strait of Hormuz were closed... "You will have no country left." They also threatened to seize control of the vital waterway.

In negotiations in Switzerland, which included mediators from Qatar, Vance downplayed the violence in Lebanon, saying there had been progress towards ending the fighting.

"These things are always complicated." he said

Despite Trump's threats against Iran, Vance told reporters that the U.S. president "asked us to begin a new chapter, to change our relationship with the Iranian people."

Neither side organized a group photo session during the negotiations. Abbas Araghchi, Iran's Foreign Minister He walked into the room and hugged me.Pakistani Prime Minister Shehbaz Sharif He acted as a mediator, but has not had any public interaction with Vance.

Late Sunday, a U.S. diplomat told Axios that both sides had made good progress in discussions to keep the Strait of Hormuz open, as well as discussing the enforcement of the ceasefire in Lebanon and the nuclear agreement.

Iran cited the situation in Lebanon as a reason for closing the strait.

Despite a new ceasefire announced in Lebanon on Friday, there is little sign that the fighting will end. Iran therefore announced on Saturday that it would close the Strait of Hormuz again, a closure that had previously lasted nearly four months and caused the biggest disruption to global energy supply in history.

U.S. officials argue that the strait was not closed, but commercial shipping data shows an immediate impact.

Only one small oil tanker passed through the strait with its position indicator activated after Iran announced it was closing the channel, compared to dozens of ships in recent days.

Iran's Fars news agency, citing military sources, said that no new permits have been issued for ships to pass through the strait until further notice.

As with many major events that impacted the global economy during the war, the announcement of the closure of the Strait of Hormuz came over the weekend while financial markets were closed, meaning the impact on oil prices was delayed until Monday.

Trump said he agreed to a memorandum last week to avoid a severe global recession that could result from soaring oil prices caused by the closure of the Strait. Oil prices have fallen last week to their lowest levels since the war began on February 28th with US and Israeli attacks on Iran.

The atmosphere in Lebanon has eased.

The memorandum of understanding stipulates a 60-day negotiation period on issues such as limiting Iran's nuclear program in exchange for the lifting of international sanctions. Before these issues are resolved, Iran is expected to receive initial economic benefits, such as sanctions relief and the lifting of frozen assets.

Iranian President Masoud Peseshkyan The Fars news agency quoted him as saying he hoped negotiations with the United States would be a crucial foundation for economic growth, with the initial goal of accessing some of the frozen assets.

before Esmail Baghei, spokesman for the Iranian Ministry of Foreign Affairs. It was stated that, because Washington could not guarantee a ceasefire in Lebanon, the meeting only covered the implementation of the memorandum of understanding, and did not address the substantive issues set out for the next steps.

Sunday was one of the quietest days in Lebanon in recent days, with no major violence reported until evening, following two days of heavy attacks from Israel and retaliatory fire from Hezbollah.

More than 1 million people have been forced to evacuate their homes in Lebanon since Israel invaded in March to track down Hezbollah groups that fired across the border in support of Tehran.

A Reuters correspondent in southern Lebanon reported one of the heaviest traffic jams since the signing of the memorandum of understanding, as people began returning home. Some stood beside long queues of cars on the highway, waving Hezbollah flags.

refer : cnbc.com

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