OSLO, March 18, 2026 (BSS/AFP) - NATO chief Mark Rutte said Wednesday that the military alliance's members were discussing the "best way" to open the Strait of Hormuz, through which a large chunk of the world's oil supply normally passes.

"I have been in contact with many allies. We all agree, of course, that strait has to open up again. And what I know is that allies are working together, discussing how to do that, what is the best way to do it," Rutte told a news conference during a visit to a NATO exercise in northern Norway.

"They are working on that collectively, to find a way forward," Rutte added.

US President Donald Trump has urged other global powers to send warships to escort convoys of tankers through the Strait of Hormuz, a vital waterway for the world's oil and liquefied natural gas supplies.

Iran has effectively closed the strait since the United States and Israel began a war on the Islamic republic last month, sending global oil prices up by more than 40 percent.

On Tuesday, Trump said "NATO is making a very foolish mistake" by not sending aid.

"I've long said that I wonder whether or not NATO would ever be there for us. So this was a great test," he told reporters.

The 79-year-old Republican has long criticised NATO, and since returning to power in January 2025 he has pushed its members into increasing their defence spending.

Asked if he would reconsider the US relationship with NATO as he has suggested in the past, Trump said it was "certainly something that we should think about" but added: "I have nothing currently in mind."