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King Philippe and Queen Mathilde of Belgium, center, Dutch Prime Minister Mark Rutte, left, and Amsterdam mayor Eberhard van der Laan, right, walk towards the national monument on Dam square on the start of the three-day visit of the Belgian royal couple to The Netherlands, in Amsterdam, Monday, Nov. 28, 2016. (AP Photo/Peter Dejong)

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.