The Austronesian groups of Jarai and E De (also known as Rhade, or Rade) form two of the largest ethnic minorities in Vietnam. Both groups spill over into northeastern Cambodia, and they share many cultural similarities. The total Jarai population stands at about 200,000; the E De number about 120,000. According to 1978 population figures, there were 10,000 Jarai and 15,000 E De in Cambodia in the late 1970s. They live in longhouses containing several compartments occupied by matrilineally linked nuclear families. There may be twenty to sixty longhouses in one village. The Rade and Jarai cultivate dry-field rice and secondary crops such as maize. Both groups have exogamous matrilineal descent groups (consanguineous kin groups that acknowledge a traditional bond of common descent in the maternal line and within which they do not marry). Women initiate marriage negotiations and residence is matrilocal. Each village has its own political hierarchy and is governed by an oligarchy of the leading families. In the past, sorcerers known as the "kings of fire and water" exerted political power that extended beyond an individual village. The Rade and the Jarai have been involved intimately in the FULRO movement, and many of the leaders in the movement are from these two groups.