[Jim Noble]

The Eastern war changed the genetics of Middle Europe, and not necessarily for the better.

[DuncanWaring]

The Great War did the same for Western Europe.

[dfwgator]

The Eastern war changed the genetics of Middle Europe, and not necessarily for the better.

Ironically, thanks to the Iron Curtain, Central Europe was able to stay fairly homogenous (Poland, Czechoslovakia, Hungary), as opposed to Western Europe.