This volume represents an inter-disciplinary discussion of some fundamental categories of convergence and divergence, focusing in particular on issues of both social integration and devolution related to ethnos as the space of identity, and demos as the space of polity. The aims of the book are to assess past developments within crucial parts of Central Europe where both conflict and coexistence potentials seem to best represent the actual "unity in diversity" managing dilemma in the continent; to provide an analysis of current approaches to minority protection, language planning, spatial and social cross-border and inter-cultural policies; and to develop an evaluation of the future trends and opportunities for co-operation and re-integration within a local and broader operational context.