Milos Popovic completed a PhD from the CEU Doctoral School of Political Science, Public Policy and International Relations, International Relations track. He received his BA from Faculty of Political Sciences, University of Belgrade, and his MA degree from Central European University, International Relations and European Studies department. In his PhD dissertation, Milos examines the conditions under which externally supported rebels turn against their state sponsors by unpacking the notion of rebel ‘defection’ into defiance, desertion, and assault.