BEIJING, CHINA - OCTOBER 20: Philippines President Rodrigo Duterte (L) shakes hands with Chinese Premier Li Keqiang (R) ahead of their meeting at the Great Hall of the People on October 20, 2016 in Beijing, China. Philippine President Rodrigo Duterte is on a four-day state visit to China, his first since taking power in late June, with the aim of improving bilateral relations.  (Photo by Wu Hong-Pool/Getty Images)