“We have already destroyed 100 per cent of Iran’s military capability, but it’s easy for them to send a drone or two, drop a mine, or deliver a close-range missile somewhere along, or in, this waterway, no matter how badly defeated they are.”

In what appeared to be an appeal to the UK and other nations, he added: “Hopefully China, France, Japan, South Korea, the UK, and others, that are affected by this artificial constraint will send ships to the area so that the Hormuz Strait will no longer be a threat by a nation that has been totally decapitated.”

Mr Trump struck a markedly different tone from when, earlier this month, he accused Sir Keir of joining the conflict after the US had already claimed victory, suggesting the US no longer needed UK assistance.

“The United Kingdom, our once Great Ally, maybe the Greatest of them all, is finally giving serious thought to sending two aircraft carriers to the Middle East,” Mr Trump wrote earlier in March. “That’s OK, Prime Minister Starmer, we don’t need them any longer – But we will remember. We don’t need people that join Wars after we’ve already won!”