Christian Schmidt, the latest envoy tasked with overseeing the ongoing peace implementation in Bosnia following the Balkans war in the 1990s, is stepping down, his office said on Monday. Schmidt has “taken the personal decision to conclude his service” as the High Representative for Bosnia and Herzegovina after nearly five years, a statement said. The German diplomat will stay on until a new envoy is chosen in to replace him, it added. Schmidt has repeatedly clashed with the Bosnian Serb leader Milorad Dodik, the main politician in the Serb-run half of Bosnia called Republika Srpska. Authorities last August removed Dodik from the post of the president and temporarily banned him from politics for disobeying Schmidt's decisions. The pro-Russian Dodik has pushed for the separation of the Serb-run half of Bosnia to join neighboring Serbia . His policies have stoked fears of renewed instability in Bosnia where ethnic tensions remain high between the country's Serbs, Croats and Bosniaks, who are mainly Muslim .…