President Trump warns US will resume attacks on Iran over Hezbollah allies.

President Donald Trump issued a stark warning on Sunday: if Iran cannot stop its Hezbollah allies in Lebanon from "causing violence," the United States will resume military strikes on Iran, according to Reuters. The threat comes as four-way peace talks mediated by Qatar and Pakistan resumed in Burgenstock, Switzerland — even as Iran claimed the Strait of Hormuz was once again closed in retaliation for Israeli strikes, Global News reported.
The ultimatum puts the fragile June 14 ceasefire framework at serious risk. Over 3,700 people have died in Lebanon since the latest conflict began, and roughly 1 million Lebanese citizens have been displaced, according to TIME.
The current truce traces back to a 14-point Memorandum of Understanding signed on June 14, 2026, between the U.S. and Iran. Trump hailed it as a deal to prevent what he called a "worldwide depression" caused by the Strait of Hormuz closure. But the deal began fracturing almost immediately. On June 19, a planned high-level meeting in Switzerland collapsed after a massive flare-up in Lebanon killed four Israeli soldiers and 47 Lebanese civilians, The Guardian reported.
Trump had already signaled his patience was thin. At a G7 press conference in Évian, France, on June 17, he said bluntly: "If it's not permanent, we will bomb them... We'll probably go back to bombing them until they honor it," according to JNS.org. On Sunday, he escalated further, warning the U.S. would act "very, very aggressively" if Iran failed to rein in Hezbollah, Times of Israel reported.
The core problem is a deep disagreement over Lebanon. Iran insists the U.S.-Iran deal must include a ceasefire for Hezbollah. But Israel — which never signed the MOU — says it keeps full "freedom of action" to strike Hezbollah targets. Israeli Prime Minister Benjamin Netanyahu has refused to pull troops from southern Lebanon, stating, "We will not leave... as long as Israel's security needs require it," according to Times of Israel.
Hezbollah leader Naim Qassem initially rejected ceasefire terms as "surrender" before later calling the U.S.-Iran MOU a "great victory" for the resistance, The Guardian reported. That contradiction shows how difficult it will be for Iran to actually control Hezbollah's actions on the ground. U.S. intelligence has warned that Netanyahu is likely to "undermine" the peace deal to satisfy domestic pressure, according to Washington Post.
The Strait of Hormuz dispute is adding enormous economic pressure. Roughly 17 million barrels of oil pass through the strait every day under contested conditions. Iran's latest claim that it has re-closed the waterway sent energy prices higher. Trump has also threatened to impose "American tolls" on ships using the strait if a final deal is not reached, according to The Hindu.
As part of initial sanctions relief, the U.S. and Qatar are reportedly planning to release $6 billion in frozen Iranian assets to Tehran, Times of Israel reported. Critics in the GOP have met the deal with "incredulity," fearing the U.S. is giving Iran economic relief while deferring the hardest talks on nuclear weapons and missiles, The Guardian noted.
The MOU gives both sides 60 days to reach a permanent agreement, according to JNS.org. Vice President JD Vance is leading the U.S. delegation in Switzerland. He said the deal aims to "permanently change relations" but admitted that regional fighting is a "major challenge," CBS News reported. The next 48 hours of talks in Burgenstock are seen as critical to preventing a full return to high-intensity warfare.
If Iran cannot — or will not — stop Hezbollah, analysts say a full Israeli ground invasion of Lebanon appears likely. That would almost certainly force the U.S. to resume bombing Iranian command targets. With 2026 midterm elections approaching, Trump faces intense pressure to show his deal-making can end a war that is growing unpopular with American voters, The Guardian reported.
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