daria1I was caught by surprise recently when a Western diplomat told me that Serb students were in majority in the Catholic high school in Banja Luka,  a town that had become predominantly Serb after persecution of other ethnic groups during the 1992-95 Bosnian war. Banja Luka is the largest town of the Serb Republic, which along with the Muslim-Croat federation makes up postwar Bosnia .