In this decade, Western governments were given a night to select 1200 refugees before the rest were marched down the Dangrek escarpment. The Eastern Zone massacres in this decade led Heng Samrin to defect. A refugee crisis that began in this decade was the subject of the Orderly Departure Program. An occupation that began in this decade was opposed by the FUNCINPEC and KPNLF insurgencies. (15[1])A surprise invasion in this decade was ordered by (*) Hua Guofeng. The KRA’s repeated border incursions during this decade were defeated by the PAVN. A year in this decade was proclaimed Year Zero by a government (10[2])which operated the S-21 prison. For 10 points, name this decade in which the Khmer Rouge took power amidst the end of the Vietnam War. ■END■