Since the Dayton Peace Accord was signed 16 years ago, the European Union (EU) has been actively involved in Bosnia and Herzegovina in various capacities and has created a number of local institutions to support its four current missions. At the same time, the complicated state institutional structure in Bosnia means that the EU must simultaneously interact with a number of local and state-level institutions. Mujo Hadzic discussed a central puzzle: Does EU conditionality work in such a complex environment? Given this institutional complexity, Hadzic argued, both the Bosnian government and the EU struggle to speak with one voice, which dilutes the EU's impact and diffuses the energies of Bosnian institutions.