An arrest order for Bosnian Serb leader Milorad Dodik will intensify Bosnia's political and constitutional crisis, testing the country's fragile institutional order amid rising regional and global instability and fueling concerns of a potential spillover of unrest across the Western Balkans. Bosnian state prosecutors issued arrest orders March 13 for Bosnian Serb separatist leader Milorad Dodik and some of his aides — including Prime Minister Radovan Viskovic and regional parliament Speaker Nenad Stevandic — for defying a court summons. Dodik, the president of Bosnia's autonomous Republika Srpska, is under investigation for allegedly undermining Bosnia's federal constitutional order after initiating laws purporting to eject central government judicial and police authority from the autonomous region. It remains unclear whether authorities intend to detain him or simply escort him to testify.