She was more casually seen at a polo match in June.
"It is a tremendous coming together of a whole range of RAF capabilities, and a celebration of the quality of our people, and it is that connection between the Royal Air Force and her Majesty the Queen", he said.
It's back to business as usual for Kate Middleton. The shade is symbolic of the country so Markle's choice in the color of her dress wasn't a coincidence.
This, her first military post as a member of the Royal Family, was given to her in December 2015 upon Prince Philip relinquishing the position and passing it over to her. The Duchess wore a powder-pink Carolina Herrera ensemble to Queen Elizabeth II's birthday, and an acidic yellow outfit to the "Your Commonwealth Youth Challenge" reception.
Princess Diana also sent out diplomatic messages when she traveled to Japan several years ago.
Markle has been following on the other female royals' footsteps, and she is expected to do so for years. According to Vanity Fair, Melania Trump appeared to have taken style cues from the Duchess of Sussex when she arrived in England this week. She accessorized with a flowered headband.
Here are five ways we think the Duchess of Sussex is following in the Queen's fashion footsteps...
Harry's brother, William, The Duke of Cambridge, and his wife, Kate, The Duchess of Cambridge, were stood slightly in front of Harry and Meghan, along with The Prince of Wales, Duchess of Cornwall, Princess Royal and other family members. Kate Middleton opted, as she has for the last two Royal christenings, to wear a white Alexander McQueen dress. However, today Meghan Markle wore a navy blue dress from Dior.