If you want a conflict between 2 races? Appartheid in SA, Zimbabwe today, In the long past, Brits vs Aboriginals, Indians vs white immigrants (in the us), Spanish vs Central american tribes
Many examples of groups of people going at eachother just because they are from a different group.
Racism in the us? It is still there today, not as clear as 40 years ago but it sure as hell isn't gone by a long shot.
I heard the latino's (read mexicans) aren't to popular in the south for example. Infact some of them are being hunted like animals by your border patrols that aren't afraid to shoot a kid. (read article about incident, not to long ago)
I don't deny that there is racism in europe aswell tough, probably the same reason why there is in the us, tired of them mooching of our tax money. Problem is we forget that many white people do just the same.