PHNOM PENH, June 27, 2016 (Xinhua) -- Cambodian Prime Minister Samdech Techo Hun Sen (2nd L) and visiting Lao Prime Minister Thongloun Sisoulith (3rd L) inspect the guard of honor at the Peace Palace in Phnom Penh, Cambodia, on June 27, 2016. Lao Prime Minister Thongloun Sisoulith was on his two-day official visit to Cambodia. (Xinhua/Sovannara)