Prince Harry salutes fallen soldiers at the opening of The Field of Remembrance in London

LONDON, ENGLAND - NOVEMBER 09: Prince Harry visits the Field of Remembrance at Westminster Abbey on November 9, 2017 in London, England. (Photo by Jeremy Selwyn - Pool/Getty Images)

Prince Harry appeared somber at Westminster Abbey at the opening of The Field of Remembrance memorial garden on Thursday.

Videos by Rare

Harry laid a Cross of Remembrance in front of the Graves of Unknown British Soldiers and saluted to the fallen heroes from the First and Second World Wars. Photos of the royal at the ceremony appeared on Kensington Palace’s official Twitter on Thursday morning.

Following the moment of silence, Harry put a smile on to greet fellow veterans who attended the opening. Harry served in the military for 10 years and did two tours of Afghanistan while serving his country.

“Prince Harry meets veterans standing in front of 380 different plots containing the 70,000 poppies planted by @poppyfactory,” Kensington Palace shared on Twitter.

Harry also spent some quality time greeting two sweet little boys, Harry and Henry, before meeting with cadets at Westminster Abbey.

RELATED: Prince Harry describes the late Princess Diana as his “ideal role model”

Poppies became a symbol of remembrance in the U.K. in 1921 after writer and Lieutenant-Colonel John McCrae wrote the poem “In Flanders Fields” about the First World War.

In Flanders fields the poppies grow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.

The Palace shared a special tribute to the the week of Remembrance on their official website on Thursday following Prince Harry’s opening ceremony.

On the second Sunday of each November, The Queen and Members of the Royal Family remember those who have died in world wars and other conflicts. In a ceremony at the Cenotaph, the focal point of the nation’s homage, Members of the Royal Family unite with others in thousands of similar ceremonies across the UK and worldwide in holding two minutes’ of silence at 11am. In the run up to Remembrance Day members of the Royal Family attend a series of engagements to honour the fallen.

[anvplayer video=”4158227″]

What do you think?

Joe Biden regrets he’s not president, but tells Oprah why it was the right call at the time

Another Texas congressman is calling it quits, leaving an open seat for Houston in 2018