The Sovereign always wears the uniform of the Regiment whose Colour is being trooped.
The Queen, as the Colonel of the Grenadier Guards, sported her Grenadier Guards military brooch.
Their Majesties journeyed to the Parade in the Scottish State Coach, one of the oldest in the Royal Mews.
Accompanying them, the Princess of Wales traveled with Prince George, Princess Charlotte, and Prince Louis in the Glass Coach.
The Prince of Wales, The Princess Royal, and The Duke of Edinburgh participated in the parade on horseback, riding Darby, Noble, and Sir John respectively, clad in the uniforms of the Regiments in which they hold the position of Royal Colonels: the Welsh Guards, the Blues and Royals, and the Scots Guards.
The parade itself was executed by hundreds of military working horses and over a thousand soldiers from the British Army’s Household Division.
The King’s Birthday Parade serves as a ceremonial tribute from the British Army’s Household Division to His Majesty in honor of his birthday.
Traditionally held on the second Saturday in June, irrespective of the Sovereign’s actual birthdate, the parade serves as a demonstration of the household division's professional excellence and loyalty to the Crown.
Most participants in the parade are between 18 and 25 years old, recent recruits with only a few months of Army experience, balancing ceremonial training alongside combat training.
During the parade, the King’s Colour (Regimental flag) is ceremonially “Trooped” through the ranks of soldiers by one of the Regiment’s junior Officers.
The privilege of Trooping their Colour rotates among the five regiments of Foot Guards, with this year's honor bestowed upon Number 9 Company Irish Guards.
The Irish Guards, founded by Queen Victoria in 1900, have served the Monarchy and the nation for almost 125 years.
This marked the first time one of the Irish Guards Public Duties Companies Trooped Their Colour on a Sovereign’s Birthday Parade and trooped in front of The King.
Number 9 and Number 12 Irish Guards Public Duties Companies were established in September 2022 during the final days of Her Late Majesty Queen Elizabeth II’s Reign.
In the past year, the Irish Guards have been deployed 17 times to six countries.
The King serves as the Colonel in Chief of the seven Guards regiments.
Distinguished by the St Patrick’s blue plumes in their bearskins on ceremonial operations, the Irish Guards typically include troops from the Republic of Ireland, Northern Ireland, Liverpool, Birmingham, as well as from Fiji, the wider Commonwealth, and the rest of the UK.
Unique among the Household Division, the Irish Guards have a Regimental Mascot, an Irish Wolfhound, who led the parade alongside the Band of the Irish Guards and the Drums and Pipes of the Irish Guards onto Horse Guards Parade.
Following the parade on Horse Guards, the Irish Guards marched up The Mall as part of the Royal Procession.
Upon completing the Trooping of their Colour, they immediately assumed responsibility as the new King’s Guard at Buckingham Palace for the following 24 hours.