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Queen Elizabeth II arrives at the Horse Guards Parade, accompanied by the Duke of Edinburgh for the Trooping the Colour

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Prime Minister Tony Blair, his wife Cherie and Defence Secretary Geoff Hoon stand among other dignitaries watching the Trooping the Colour ceremony

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Members of the Royal Family watch the fly past from the balcony of Buckingham Palace

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One unlucky trooper had managed to lose his helmet ahead of the parade

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The Household Cavalry had rehearsed on The Mall days before the official parade date

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The Countess of Wessex and the Duchess of Gloucester shared an open top carriage during the event

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Captain Ben Sempala-Ntege, the first black Army captain to command a horse unit for Trooping the Colour