Lao Sung or more commonly Lao Soung (Laotian: ລາວສູງ [láːw sǔːŋ]) is an official Laos PDR designation for highland dwelling peoples in Laos (the others being the Lao Loum and the Lao Theung). The ones in Laos, the actual Lao Soung, make up 9% of the Laotian population. The Lao Soung aren't actually one single ethnic group but are made up of (H)mong (the main group), Yao, Akha, Phu Noi and other people who live in the Laotian mountaintops. All these groups are related. Their main religions are animism, Buddhism, and Chinese folk religions. Some Lao Soung fought against the communistPathet Lao government in 1975 to keep the Laotian monarchy in power. Many moved from southern China and Laos to the U.S. and Australia in the 1960s, 1970s, and 1980s to escape the communist governments there.