Britain's Queen Elizabeth II arrives at a ceremonial welcome for the Singaporean president's state visit at Horse Guards Parade in London on October 21, 2014. Singapore's President Tony Tan began the first full day of engagements in the first state visit by a Singaporean president to Britain. AFP PHOTO / POOL / TOBY MELVILLE (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
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AFP TOBY MELVILLE