ソン・サン
He appointed In Tam, who had briefly served as Prime Minister in the Khmer Republic, as the commander-in-chief of ANS. The ANS needed military aid from China, and Deng seized the opportunity to sway Sihanouk into collaborating with the Khmer Rouge. Sihanouk reluctantly agreed, and started talks in March 1981 with the Khmer Rouge and the Son Sann-led Khmer People's National Liberation Front (KPNLF) on a unified anti-PRK resistance movement.