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Britain's Prince William, center, and Belgium's Princess Astrid, right, arrive for a New Zealand commemoration of the WWI Battle of Passchendaele at Tyne Cot cemetery in Zonnebeke, Belgium, Thursday, Oct. 12, 2017. In October of 1917 the New Zealand division suffered heavy losses during the Third Battle if Ypres. (Frederic Sierakowski, Pool Photo via AP)

Royals William and Kate in Singapore

Britain's Prince William and his wife Catherine arrive in Singapore Tuesday, kicking off a nine-day Southeast Asian and Pacific tour marking Queen

Elizabeth II's Diamond Jubilee.