Senior leaders of Democratic Kampuchea (DK) waiting for the arrival of the Chinese delegation at the Po-chen-tong International Airport, Phnom Penh. Chinese Ambassador to DK, Sun Hua, is standing second from the left. DK senior leaders from right to left: Ieng Thirith, Minister of Social Affairs; Yun Yat, Minister of Education and Culture; Pol Pot; Ieng Sary, Minister of Foreign Affairs; Vorn Vet, Minister of Economics; Nuon Chea, President of People's Assembly and Khieu Ponnary. Others are unidentified.