President Rodrigo R. Duterte returned to the Philippines on Sunday after a “highly successful” official visit to China for the Second Belt and Road Forum, Malacañang said. Mr. Duterte also said at Session III of the Leaders’ Roundtable Sessions at the Yanqi Lake International Conference Center, “As channels of transportation and communication, and a vital source of sustenance and livelihood, our oceans and seas connect and sustain us. It is thus our collective duty to promote their sustainable and peaceful use in accordance with international law.”

Balinbin, A. L. (2019, April 29). Duterte: 'Our duty' with China to use 'our seas'. BusinessWorld, p. S1/10.