BEIRUT/WASHINGTON — Donald Trump delivered an extraordinary ultimatum to his longtime ally Benjamin Netanyahu on Monday, warning the Israeli prime minister that continued military aggression against Iran could leave Israel fighting without American backing. The blunt message — "Bibi, you better be careful, or you will be on your own very soon" — marked one of the sharpest public ruptures between Washington and Jerusalem in recent memory, even as Israeli forces pressed forward with strikes on Iranian and Lebanese targets.
Trump Netanyahu Iran Warning — The latest escalation was triggered on Sunday when Israel launched a deadly bombardment of Beirut, prompting Iran to fire a wave of missiles at northern Israel. Trump called Netanyahu on Sunday evening and urged him to stand down. Israel attacked anyway. Early Monday, Israeli forces struck Iranian air defence systems and the Mahshahr petrochemical complex in southwest Iran. Iranian media reported no casualties from the Mahshahr strike. Iran retaliated by hitting a petrochemical facility in Haifa and targeting two Israeli airbases.
Trump, posting on Truth Social, demanded both sides stop "shooting" and declared that "final negotiations" toward peace would proceed — adding the caveat that progress depended on "ignorance or stupidity not getting in its way." Vice President JD Vance told Fox News the United States remained in a strong position to achieve the administration’s goals through diplomacy with Tehran.
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Iran and Israel subsequently halted their mutual attacks, though Tehran warned strikes would resume if Israeli aggression — including in Lebanon — continued. The pause followed what officials described as the most serious escalation since a ceasefire took effect in April.
On the ground in southern Lebanon, the violence showed no sign of abating. Israeli attacks on Monday killed at least a dozen people, including a woman and a child, and wounded four Lebanese paramedics. Hezbollah reported launching 16 separate attacks on Israeli forces, targeting positions in Beit Yahoun, Rachaf, Naqoura, at-Tiri, and Aainata. The group also claimed drone strikes on a communications vehicle near Beaufort Castle. Israeli Defence Minister Israel Katz said the military would persist with its campaign against Hezbollah regardless of diplomatic pressure.
The Lebanese Health Ministry’s cumulative toll since March now stands at 3,637 killed and 11,188 wounded. A UN spokesperson warned that Israeli military evacuation directives in southern and eastern Lebanon cannot be executed safely under current conditions, raising alarm among humanitarian organisations already struggling to operate in the country.
The humanitarian situation was further complicated by an Israeli Supreme Court ruling upholding restrictions that require aid organisations to submit staff lists to the Israeli government. 37 aid groups — including Oxfam, Save the Children, Doctors Without Borders, and the International Rescue Committee — have been banned for refusing to comply. A joint statement signed by 18 European countries, Australia, and Japan condemned the registration laws, reflecting growing international unease with Israeli policy toward civilian relief operations.
At sea, the US military’s Central Command struck and disabled an oil tanker in the Gulf of Oman that was heading toward an Iranian port — the seventh vessel hit by American forces since Washington imposed a blockade on Iran’s ports in April. The naval campaign has contributed to rising energy prices: Brent crude futures climbed to $94.38 per barrel and West Texas Intermediate reached $91.41 in early Tuesday trading. A Reuters/Ipsos poll completed Monday found a majority of Americans expect fuel prices to keep rising as a consequence of the conflict, with Trump’s approval rating hovering near the lowest point of his political career.
Trump Netanyahu Iran Warning: Regional Implications
Diplomatic channels remain active. Iranian Ambassador Amir Saeid Iravani confirmed that US-Iran talks are being mediated by Pakistan and expressed hope that negotiations could reach a conclusion by the end of June. Iran’s chief negotiator is Mohammad Bagher Ghalibaf, the country’s parliamentary speaker. In a separate signal of diplomatic strain, Iran’s under-23 national football team withdrew from a scheduled friendly match with Bahrain; the squad is currently holding a training camp in Turkey.
The friendship between Trump and Netanyahu, which Israeli Ambassador to the US Yechiel Leiter described as spanning roughly 40 years, is now being tested by the widening conflict. Trump’s warning reflects a calculation in Washington that unchecked Israeli military action risks derailing the administration’s broader diplomatic agenda in the region — even as both governments insist their alliance remains intact.
The crisis unfolded against a backdrop of domestic turbulence for Trump. The president was loudly booed when shown on the big screen at Madison Square Garden during the NBA Finals on Monday evening, a moment that underscored the political costs of a prolonged Middle East war for an administration already navigating historically low approval numbers.
