Cambodian Prime Minister Samdech Techo Hun Sen (R, front) and Lao Prime Minister Thongloun Sisoulith (L, front) cut the ribbon during the inauguration ceremony of a new border checkpoint between Cambodia's Stung Treng province and Laos' Champassak province, in Stung Treng, Cambodia, Jan. 10, 2017. Cambodian Prime Minister Samdech Techo Hun Sen and his Lao counterpart Thongloun Sisoulith jointly inaugurated a new border gate on Tuesday in a bid to boost trade and tourism between the two ASEAN members. (Xinhua/Sovannara)