Pathet Lao
/ˌpatɛt ˈlaʊ/noun
(The name of) a communist guerrilla movement and political party in Laos which was founded in 1950 and formed the government in 1975.
Origin
1950s; earliest use found in The Times. From Lao pāthèt lao, name of the movement and party, and of the nation of Laos from pāthèt country (ultimately from Sanskrit) + lao.