The 33-year-old royal served two tours in Afghanistan after joining The Blues and Royals in April 2006, and often speaks out about the benefits of his time in the military.
"I was also there for William and Kate's wedding".
And Markle's embrace for this former wild-child has made the couple even more endearing in the public's eyes - to the point where Max calls American intrigue surrounding the wedding an "infatuation".
The insider adds that "she's finding it really hard to trust people she meets now".
"A source said: "[Duchess Catherine] has also been advising Markle about royal fashion, what protocol is expected and how she may have to adapt in the future.
He explained: "I think she would be over the moon, jumping up and down, you know so excited for me, but then, as I said, would have probably been best friends - best friends with Meghan".
Prince Harry and Meghan Markle
"One of the obsessions with Princess Diana's wedding was that she wasn't us", Thompson said - but Markle represents the face of an increasingly diverse America, and an increasingly diverse royal family.
"I will most definitely be present for Harry and Meghan's wedding".
Prince Harry and Meghan Markle's wedding date is fast approaching, with the couple set to tie the knot on May 19th at St George's Chapel, in Windsor Castle. State trumpeters and a Captain's Escort from the Household Cavalry will offer ceremonial support. Prince Harry, who was a former soldier in the British army and is now the Captain General of Royal Marines, will likely don a uniform for the ceremony.
Kensington Palace released images and videos of the wedding invitations sent to guests.
The invited guests will be on hand to watch Harry, Markle and their guests arrive at Windsor Castle, and also to see the bride and groom depart in a carriage after the ceremony, according to Kensington Palace. The cards are "burnished to bring out the shine, and gilded around the edge". The Band of the Household Cavalry's instruments will be used in May at the wedding of HRH Prince Henry of Wales and Ms Meghan Markle.
Prince Harry has previously said he wanted to join the Gurkhas himself but missed the chance because of timing. Frogmore House has been a Royal residence since 1792.
United States navy sails warship near disputed Spratly Islands in South China Sea
The move came at a time when China had said its navy will carry out combat drills in the disputed South China Sea. Navy, the Arleigh Burke class guided-missile destroyer USS Fitzgerald (DDG 62) is on patrol on September 8, 2014.