Proper noun
Khmer Krom
Khmer Krom, ethnic Khmers of South Vietnam (Kampuchea Krom)
The Cambodians under both the pro-China King Sihanouk and the pro-American Lon Nol supported their fellow co-ethnic Khmer Krom in south Vietnam, following an anti- ethnic Vietnamese policy. Source: Internet
Standard Cambodian Khmer is mutually intelligible with the others but a Khmer Krom speaker from Vietnam, for instance, may have great difficulty communicating with a Khmer native to Sisaket Province in Thailand. Source: Internet