President Donald Trump said Monday that some U.S. allies are not willing to join a coalition to protect tankers in the Strait of Hormuz.

“It is in our interest to keep the Strait of Hormuz open, and that’s why we are also discussing what we can do in this regard from the European side,” Kaja Kallas, the EU’s foreign policy chief, said Monday ahead of a meeting of the 27-nation bloc’s foreign ministers in Brussels.

In the midst of the widening 2026 U.S.–Iran war, President Donald Trump issued a dramatic call for global cooperation to secure the Strait of Hormuz — a vital maritime chokepoint through which nearly 20 % of the world’s oil supply passes — after Tehran’s actions and threats disrupted normal navigation and contributed to global energy turmoil.

At a meeting in Brussels, where European Union foreign ministers gathered to discuss Trump’s demand, German Foreign Minister Johann Wadephul said it’s important for the U.S. and Israel to define “when they consider the military aims of their deployment to have been reached.”

President Trump has urged China, Britain, France, Japan and South Korea to send warships to help reopen the waterway, even though they are not involved in the U.S.-Israeli attack on Iran.

Late Sunday French President Emmanuel Macron said he spoke with Iranian President Masoud Pezeshkian and called on him to end “the unacceptable attacks Iran is carrying out against countries in the region,

Iran war could escalate further as Trump threatens to hit key oil infrastructure if Tehran doesn't drop its chokehold on the Strait of Hormuz.