
The Cham have suffered a lot. Their Muslim Champa Kingdom in what is today southern Vietnam was boxed in by the VIetnamese and the Khamers until they were destroyed and they became exiles in Cambodia. During the Khmer Rouge, they were the ethnic group that suffered the most because of their Muslim identity which was considered a threat by the Khmer Rouge. Also during the Vietnam War, they joined the war against the communists and were also attacked.
Two informational pages with a lot of pictures:
http://www.pbase.com/tsechien/mekong
http://ki-media.blogspot.com/2010/09/ra ... re-to.html