During his 20-week deployment, the Prince received no special treatment, and was sent on all manner of missions over Helmand Province in Southern Afghanistan. Now he is safely on his way back home, it can be revealed he took Taliban insurgents "out of the game" during his posting.
"Take a life to save a life, that's what we revolve around, I suppose," he explained. "if there's people trying to do bad stuff to our guys, then we'll take them out of the game, I suppose."
He also admits he "let my family down" with respect to the compromising pictures which surfaced of the royal in Las Vegas and speaks about his views on settling down.
The 28-year-old army captain was in Afghanistan when news broke that Prince William and Kate Middleton were expecting their first child. In Helmand Province, about ten days after the announcement, Harry said "I can't wait to be an uncle." And that he was "thrilled for both of them." He added, jokingly: "It's about time."
Asked if he had telephoned the Duke and Duchess of Cambridge to congratulate them from Afghanistan, he said: "Of course I have. I had a chat to them." But he put paid to press reports that he had written to them. "I didn't send a letter of congratulation like most of the papers said. How any of the papers think that they know the relationship between myself and my sister-in-law is quite remarkable. I spoke to my brother and her, and they're both very well and both very happy obviously."
Prince Harry, who will become fourth-in-line to the throne when the new baby is born in July, added: "I think it's very unfair that they were forced to publicise it when they were… And I literally am very very happy for them, but I just only hope that she and him - but mainly Catherine - hopefully that she gets the necessary protection to allow her as a mother-to-be to enjoy the privacy that that comes with it.
Asked if there was pressure on him to find a girlfriend and settle down like his older brother, he said: "I don't think you can ever be urged to settle down. If you find the right person and everything feels right, then it takes time, especially for myself and my brother."
The Apache Helicopter Pilot said William – who is an RAF Search and Rescue Pilot would be keen to join him in Afghanistan. "I think there is a bit of jealousy, not just the fact that I get to fly this, but obviously he'd love to be out here. And to be honest with you, I don't see why he couldn't… People back home will have issues with that, but we're not special. The guys out there are. Simple as that."
Watch: Prince William takes George to meet his sister
It's a little princess!