Donald Trump said the UK and other countries which did not take part in strikes against Iran should secure the Strait of Hormuz themselves.
The US president said countries which “refused to get involved in the decapitation of Iran” should “build up some delayed courage, go to the strait and just take it”.
In the latest sign that his Middle East campaign has severely damaged long-standing relationships, Mr Trump suggested its allies will “have to start learning how to fight for yourself”.
The UK was the only country named in a post by Mr Trump on his Truth Social platform.
Mr Trump wrote: “All of those countries that can’t get jet fuel because of the Strait of Hormuz, like the United Kingdom, which refused to get involved in the decapitation of Iran, I have a suggestion for you: Number 1, buy from the U.S., we have plenty, and Number 2, build up some delayed courage, go to the Strait, and just TAKE IT.
“You’ll have to start learning how to fight for yourself, the U.S.A. won’t be there to help you anymore, just like you weren’t there for us.
“Iran has been, essentially, decimated. The hard part is done. Go get your own oil!”