To be honest Europe is one of the least RACIALLY divied places on Earth. The conflict usually come from centuries old ETHNIC and/or RELIGIOUS conflicts.
EX take the Balkans. The Serbs vs Croats. All that murder was inspired by the fact that Serbs and Orthodox and the Croats are Catholic. Thats one of the FEW ways they are different. They are both of Slavic desecent, they live in geographically similar areas, eat pretty much the same stuff, speak the same language or close to the same language, Ect....

BTW i read this info like three years ago in a paper book so if someone wants to prove me wrong go for it.