The soldier, Charanpreet Singh Lall, wore the turban as part of the ceremonies for Trooping the Colour, a parade honoring Queen Elizabeth's birthday.
It's part of a strategic plan to formally introduce Meghan as an integral member of the royal family.
"Meghan looked very much regally appropriate for such an important royal event", Amanda Dishaw of Meghan's Mirror told E! Princess Kate was dressed in one of her favorite designers, Alexander McQueen, while Meghan opted for a one-of-a-kind creation by Carolina Herrera and hat by Philip Treacy, a favorite of the Royal Family. The layers on the shoulders and the big-sized buttons made for catchy details, and Meghan spilled her iconic panache as she sat next to Prince Harry.
"We also loved how her flowing hair was down in majestic curls and we can't ignore the huge smile on her face", Dishaw said.
The Duchess completed her majestic look with a massive, shallow hat, and redefined subtlety for us.
Her husband, the Duke of Edinburgh, attended the event with her past year, but was absent today. As well, if the Queen can't guide her, then expect to see the guiding hand of a lady-in-waiting who acts as a female regal aide on such duties.
The three-year-old was comforted by Duchess Kate, 36, who offered some reassuring words and patted her back.
Trooping the Colour and the day in Cheshire represent the beginning of the busy royal summer season. They are expected to travel to Australia, New Zealand, Fiji and Tonga.