I understand that Republika Srpska is made up of Bosnian Serbs, but seeing as the majority of Bosnia-Herzegovina is made up of Bosniak Muslims, why wouldn't Republika Srpska become part of Serbia? For the most part, Srpska borders Serbia (and part of Croatia). Is this because the Bosnian Serbs want to stay part of their nationality, or did Serbia not want Srpska?
Because it wasn't completely ethnically cleansed (from Bosniaks and Croats) until 1995. Here's a map from 1991. As you can see 60% of the border with Serbia was populated by Bosniaks.
Edit: Comparison
I'm talking about Republika Srpska during the Bosnian War. Why would Serbia not annex them then? Not to violate the 20-year rule.
