PHNOM PENH, June 20, 2016 (Xinhua) -- Cambodian Prime Minister Samdech Techo Hun Sen speaks at a graduation ceremony in Phnom Penh, Cambodia, June 20, 2016. Hun Sen said on Monday that the country will not support an arbitral tribunal's upcoming decision over the South China Sea issue and called on all parties concerned in the disputes to resolve their differences through bilateral negotiations. (Xinhua/Sovannara)
