Four days of celebrations honoring Queen Elizabeth II’s 70 years on the throne kicked off Thursday with a display of British military traditions stretching from the days of horse and cannon to the jet age.
Formal celebrations for the Platinum Jubilee began with Trooping the Color, an annual military review that has marked the sovereign’s official birthday since 1760. The queen took a salute on the balcony of Buckingham Palace and joined the working members of her family for a military flypast.
Thousands of people, some of whom camped overnight, lined the parade route -- many of them sporting Union Jack flags, party hats or plastic tiaras. Carly Martin, who caught a late-night bus from south London with her daughter, said she had come “to make memories.”
“You’re never going to see this again in your lifetime,” she said. “At least not in mine, maybe not in my daughter’s. ... 70 years -- it is all I have ever known.”
Get top local stories in Philly delivered to you every morning. Sign up for NBC Philadelphia's News Headlines newsletter.
The 96-year-old queen is Britain’s longest-reigning monarch and the first to reach the milestone of seven decades on the throne. Elizabeth smiled broadly Thursday as she spoke with her great-grandchildren and looked up as the British military aircraft roared over the palace. The six-minute display included Typhoon jets flying in a formation spelling out the number “70.''
More British Royal Family Coverage:
The jubilee is being commemorated with a four-day holiday weekend. The celebration of Elizabeth's reign includes a service of thanksgiving on Friday at St. Paul’s Cathedral in London, a concert at Buckingham Palace on Saturday and a pageant staged by thousands of performers drawn from schools and community groups around the country on Sunday. Thousands of street parties are planned around the country, repeating a tradition that began with the queen’s coronation in 1953.
Several protesters were arrested Thursday after getting past barriers and onto the parade route. The group Animal Rebellion claimed responsibility, saying the protesters were “demanding that royal land is reclaimed.”
The jubilee is giving many people — even those often indifferent to the monarchy — a chance to reflect on the state of the nation and the huge changes that have taken place during her reign. Former Prime Minister John Major — one of the 14 prime ministers of the queen's reign — said the monarch's stoic presence had helped steer the country over the decades,
“The queen has represented our better selves for over 70 years," he told the BBC.
In a written jubilee message, the queen thanked people in Britain and across the Commonwealth involved in organizing the celebrations. For many, the occasion is the first opportunity for a big bash since the start of the coronavirus pandemic more than two years ago.
“I know that many happy memories will be created at these festive occasions,” Elizabeth said. “I continue to be inspired by the goodwill shown to me, and hope that the coming days will provide an opportunity to reflect on all that has been achieved during the last 70 years, as we look to the future with confidence and enthusiasm."
Photos: Queen Elizabeth II's Platinum Jubilee
Congratulations arrived from world leaders. French President Emmanuel Macron called Elizabeth “the golden thread that binds our two countries” and one of “very few constants” on the international stage.
Former U.S. President Barack Obama recalled the queen’s “grace and generosity” during his first visit to the palace. He said he had “learned so much from seeing the example she set for all of us who had the privilege to serve.”
“Your life has been a gift, not just to the United Kingdom but to the world,” Obama said in a video message, adding: “May the light of your crown continue to reign supreme.”
The long weekend's first event, Trooping the Color, refers to a regimental flag, or “color,” that is trooped through the ranks. Britain's annual tradition for the queen's birthday is a ceremonial reenactment of the way battle flags were once shown to soldiers to make sure they would recognize a crucial rallying point if they became disoriented in combat.
Each year a different unit in the army's Household Division has the honor of trooping its color. The 1st Battalion of the Irish Guards will have the spotlight during the Platinum Jubilee.
Cheers and the clop of hooves rang out Thursday as horse-drawn carriages carried members of the royal family, including Prince William’s wife, Kate, and their children Prince George, Princess Charlotte and Prince Louis, from Buckingham Palace to Horse Guards Parade, a ceremonial parade ground about 1 kilometer (0.6 miles) away.
Prince Charles played a key role during the event. Mounted on horseback, he also took a salute, from ranks of scarlet-clad Guards, on his mother's behalf, along with his sister, Princess Anne, and his son Prince William.
Elizabeth has had trouble getting around of late, and her courtiers have been careful to keep make things as simple for her as possible.
Senior royals including Prince Charles' wife, Camilla, traveled in carriages to watch the ceremony from a building overlooking the parade ground.
The Duke and Duchess of Sussex joined other royals to watch the spectacle. Harry and Meghan traveled to London from their home in California with their two young children to take part in the celebrations.