Trooping the Colour: Britains's most iconic annual event

The monarch's official is celebrated on the second Saturday of June in a ceremony known as Trooping the Colour. (Photo: AP/Frank Augstein)

Meghan, Duchess of Sussex made her first appearance after showing off son Archie Harrison to the world over a month ago. (Photo: AP/Frank Augstein)

Camilla, Duchess of Cornwall and Kate, Duchess of Cambridge rode to the Palace together along with the Sussexes in a horse-drawn carriage. (Photo: AP/Frank Augstein)

Queen Elizabeth rode in a carriage to attend the annual Trooping the Colour ceremony in London. (Photo: AP/Frank Augstein)

Princess Anne attended the ceremony on horseback, dressed in her colonel garb. (Photo: AP/Frank Augstein)

Prince William is seen saluting as he rides horseback for the ceremony. As he is a royal colonel, he does not ride in the carriage with his wife. (Photo: AP/Victoria Jones)

Trooping the Colour is the Queen's birthday Parade, which is celebrated in June. It is the one of the nation's most impressive and iconic annual events. (Photo: AP/Frank Augstein)

The extended Royal family gathered on the balcony of Buckingham Palace to watch the Royal Flypast. This event is attended by almost every member of the Royal Family. (Photo: AP/Frank Augstein)

Airplanes of the Reed Arrows fly over Buckingham Palace during the annual Trooping the Colour Ceremony in London. (Photo: AP/Frank Augstein)

Queen Elizabeth waved goodbye to the crowd as the rest of the family made their way inside Buckingham Palace after the Flypast. (Photo: AP/Frank Augstein)

Little Prince Louis made his debut on the balcony this year. He is pictured here along with his parents and elder siblings, waving. (Photo: AP/Frank Augstein)