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POWIS, UNITED KINGDOM - APRIL 20: Queen Elizabeth II Smiles At American Soldiers Dressed In Military Uniforms From The American Revolution At Powis Castle In Wales. The Queen Is Visiting The Royal Welch Fusiliers On Her Birthday. (Photo by Tim Graham/Getty Images)

POWIS, UNITED KINGDOM - APRIL 20:  Queen Elizabeth II Smiles At American Soldiers Dressed In Military Uniforms From The American Revolution At Powis Castle In Wales. The Queen Is Visiting The Royal Welch Fusiliers On Her Birthday.  (Photo by Tim Graham/Getty Images)