This thesis approaches the concept of nationalism within the context of post-Soviet Estonian and Georgian state-building from a sociological perspective, building upon the work of Émile Durkheim, Bernard Yack, Anthony Smith, and Rogers Brubaker. Taking such a stance identifies nationalism as a social concept whose relationship with geopolitics and political integration comments on the merits of post-Soviet Estonian and Georgian geopolitical conditions and their respective state-building processes, specifically regarding ethnic minority and international integration. I argue that the cases of Estonia and Georgia demonstrate that social solidarity institutionalized in states and expressed through nationalism has significant effects on geopolitics and the integration of ethnic minorities into a broader multi-ethnic state as well as on the integration of a broader multi-ethnic state into the international community. This thesis demonstrates that the different paths that Estonia and Georgia took towards this integration indicate the significance not only of domestic nationalistic circumstances, but also of the larger geopolitical realities and underlying historic foundations in which and from which state-building must occur.