EUROPE: Fragile Bosnia: The break-up danger; Growing fears that fractious political leaders are jeopardizing Bosnia's future," The Economist, 8 November 2008.
There is the Republic of Srpska and the Croat-Bosnian Federation. The Srpska part is full of Serbs who still dream of connecting to Serbia--go figure.
So it's the usual deal that whenever a break occurs from a mother-state, there's always a subset of the breakaway province that wants to further breakaway and go running home to mamma.
Happens just about every time.