“He addressed the Kyiv security conference over the weekend, where he said he implored Vladimir Putin to end the war, and he said to Donald Trump that America needs to do more. Now I’m not sure why he thinks Vladimir Putin would be listening to him. Vladimir Putin is not listening to any world leader at the moment. Secondly, the fact that he actually thinks that Putin is listening to his speech!” she exclaimed.

She continued her appraisal: “He then went on to say he’s still a member of the Royal Family in an interview. Now we have a saying Down Under… not the sharpest tool in the shed, and I think that would probably be the best way to describe Prince Harry.

“In fact, I actually think the timing couldn’t have been worse. His father…is about to fly to the US pending more security checks, which is a very, very important visit.

“He’s got to really reset that relationship between the US and the UK, and you’ve got Harry out in Ukraine masquerading as some sort of foreign expert.

“I think the time has come for Harry to just keep his mouth shut, stop embarrassing his father and stop embarrassing the Royal Family,” she concluded.

He spoke to ITV after visiting HALO Trust operations near Bucha, where he observed new digital de-mining technology.

The Duke told the broadcaster that he sees himself continuing to do the work he was “born to do,” saying he values humanitarian trips, the people he meets, and the ability to draw attention to issues that fall out of the news cycle when other events dominate.

His visit with HALO Trust was also connected to a personal family legacy. His mother, Diana, Princess of Wales, brought global attention to landmine clearance after walking through an active minefield in Angola in 1997, helping shift international awareness of the issue.