Contribute on how to adopt adequate ideology that can contribute for successful integration among States to conduct shared efforts and achieve shared effects in the horn of Africa. Generally, Synergy among economies of state in the region, as a frame work of the implementation of regional economic integration strategy, facilitates the achievements of greater common economic effects. This book can contribute to add knowledge to the already existing knowledge concerning the role of ideology in the effort of regional integration process in the regional and how to meet its goal of achievements of economic development and peace for the community of the region.