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Royal horsing around with the King's Troop in London

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Captain Owen Beynon Brown of the King's Troop Royal Horse Artillery introduces his dog 'Lord Percy' to 'Tango' the horse prior to an inspection in Hyde Park in preparation for 2012 State Ceremonial on April 19, in London, England.

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Gunner Callum Fretwell of the King's Troop Royal Horse Artillery strokes 'Tango' the horse, prior to an inspection in Hyde Park in preparation for 2012 State Ceremonial on April 19, in London, England.

Oli Scarff / Getty Images

Members of the King's Troop Royal Horse Artillery prepare for an inspection in Hyde Park in preparation for 2012 State Ceremonial on April 19, in London, England.

The King's Troop, based in Wellington Barracks in central London, will take part in several ceremonial roles in 2012 including the Queen's Diamond Jubilee, Trooping the Colour and the London 2012 Olympics. 54 riders, 72 horses and 6 guns from the King's Troop took part in the Major General's Inspection in Hyde Park's 'Cavalry training Ground' to prepare for the firing of a Royal Salute to mark the birthday of Her Majesty Queen Elizabeth II on April 21, 2012.

Kirsty Wigglesworth / AP

Gunner Danielle Hamilton, right, from the King's Troop Royal Horse Artillery, is helped with her uniform by colleagues at Wellington Barracks in London, on April 19.

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Members of the King's Troop Royal Horse Artillery polish their boots prior to an inspection in Hyde Park in preparation for 2012 State Ceremonial on April 19, in London, England.

Luke MacGregor / Reuters

Gunner Danielle Hamilton prepares a horse for an inspection parade of the King's Troop Royal Horse Artillery at Wellington Barracks in London, on April 19.