unk greek civil war ( , `` o unk '' [ `` unk '' ] , `` the civil war '' ) was a civil war in greece fought Hostile_encounter between the greek government army ( supported Supporting by the united kingdom and the united states ) and the democratic army of greece ( dse ) UNK the military branch of the communist party of greece ( kke ) ( supported by yugoslavia , albania and bulgaria ) from 1946 to 1949 .