In an October 25 Los Angeles Times article, this question was asked about the International Criminal Court (ICC): Why have "only Africans have been tried at the court for the worst crimes on Earth"? The International Criminal Court began enforcement for "crimes against humanity" (among other charges) in 2002 in the Hague.
In 1999, Slobodan Milošević was brought to trial at the International Criminal Tribunal for the former Yugoslavia (IICTY); his prosecution preceded the ICC. Therefore, he was not an exception to the rule of the International Criminal Court, which thus far has been to only conduct prominent prosecutions against Africans. Read more.