Major 1150 gallons water bowser spraying water onto the dusty surface before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:00.

Female spectator, wearing a white hat with a large white rose in front, before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:07.

Young female spectator before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:11.

Young boy, wearing a striped three-piece-suit with a bow tie and a hat, holding a paper copy of the programme before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:13.

Woman with long black hair posing with a Coldstream Guards Captain for a photo before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:14.

A Coldstream Guards Sergeant and Captain welcoming Chelsea Pensioners before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:19.

Father and son, both in dark suits, and the father with a Household Division tie, holding their printed tickets and an event programme before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:19.

Army photographer in uniform, wearing his medals and cameras, at the Wolseley press stand before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:21.

Visitors chatting on one of the grandstands before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:21.

Grandstands are filing up, the ground is sprayed with water - getting ready for The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:26.

Father and daughter having their photo taken before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:28.

The Colonel's Review 2018. Horse Guards Parade, Westminster, London, United Kingdom, on 02 June 2018 at 09:45, image #12

Garrison Sergeant Major (GSM) Headquarters London District, Warrant Officer Class 1 Andrew (Vern) Strokes before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:45. This photo is about the badge, the GSM is wearing a historic Warrant Officer’s Badge of rank, the badge revives the original one made for Sergeant Majors appointed to the Court of King William IV in the early 19th Century. It incorporates the Royal Coat of Arms worn by selected Warrant Officers Class 1 of the The Household Division, placed over four chevrons sewn in gold thread, the traditional badge of the Sergeant Major. The Badge was commissioned by Major General Bill Cubitt CBE, Major General Commanding the Household Division in 2011, before being approved by HM The Queen. It is the only one worn within the British Army.

A lady wearing pearl necklaces and earrings arriving at Horse Guards Parade before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:45.

Young boy carrying an event programme and looking up to a Captain of the Coldstream Guards before The Colonel's Review 2018 (final rehearsal for Trooping the Colour, The Queen's Birthday Parade) at Horse Guards Parade, Westminster, London, 2 June 2018, 09:46.