Philippine President Rodrigo Duterte Visits Singapore [Getty Images]

SINGAPORE - DECEMBER 15: Philippine President Rodrigo Duterte walks back after inspecting the guard of honour, accompanied by Singapore President, Tony Tan Keng Yam (L,back) at the Istana during the welcome ceremony at the Istana on December 15, 2016 in Singapore. Duterte is on a two-day visit to Singapore. (Photo by Suhaimi Abdullah/Getty Images)

Getty Images News Suhaimi Abdullah