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The Countess of Wessex (right) meets Lieutenant General Nicholas Pope, Deputy Chief of the General Staff, at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

The Countess of Wessex (right) meets Lieutenant General Nicholas Pope, Deputy Chief of the General Staff, at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

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The Countess of Wessex meets Major Joanna Gillies (right) of the Royal Army Veterinary Corps and her Ex Army Explosive search Dog Milly in their accommodation at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

The Countess of Wessex meets Major Joanna Gillies (right) of the Royal Army Veterinary Corps and her Ex Army Explosive search Dog Milly in their accommodation at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

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The Countess of Wessex (left) and The Lord-Lieutenant of Hampshire, Nigel Atkinson admire a picture entitled 'Dogs' Mess' on the wall inside the accommodation of Major Joanna Gillies at Army HQ, Andover, where the Countess opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

The Countess of Wessex (left) and The Lord-Lieutenant of Hampshire, Nigel Atkinson admire a picture entitled 'Dogs' Mess' on the wall inside the accommodation of Major Joanna Gillies at Army HQ, Andover, where the Countess opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

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The Countess of Wessex arrives at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

The Countess of Wessex arrives at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

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The Countess of Wessex arrives at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)

The Countess of Wessex arrives at Army HQ, Andover, where she opened and toured a new accommodation block and visited the Officers' Mess. (Photo by Andrew Matthews/PA Images via Getty Images)