The Aegean Sea via the Voronoi diagrams and the Delaunay triangulation is presented as a topostrategic paradigm. The uniqueness of the Aegean Sea becomes understandable only when it is compared to Micronesia and Polynesia, only it is not found in an ocean but a semi-confined sea. Which means that there is greater density but not just that. This property approaches more the accumulation points of Cantor’s set. In consequence, the fractal property is not only meaningful on a local level. And this explains also the geostrategic robustness and value of the Aegean Sea. Its structure is not irrelevant and indifferent in relation to the evolution of our civilization. The islands are the human elements of the sea and the peculiarities of the manifold of the Aegean. The contact edges of the islands forced the creation of a maritime entity, which was transformed over time into a power via technique, art and mathematics. In other words Greece, via the Aegean Sea, is the country of time and time the space of resistance. For this reason we have as a repercussion the historical element. The Aegean Sea demonstrates the paradigm for all the islands of the Mediterranean. The Mediterranean is a sea but it is determined through land while the land of the Mediterranean is the islands, all the islands of Spain, France, Italy, Malta and Greece. In other words, the islands of the European Union, which can operate as a connecting link inside the framework of the Euro-Mediterranean approach. These tiles of the mosaic are not only unique but also essential because there is no mosaic without tiles. The entire evolution of the European Union is founded on the topologic notion of cohesion. And the islands via the shelf and the EEZ constitute the complementary element of the entire structure. Consecutively, the Aegean Sea, as a topostrategic paradigm of Greece, can be generalized for all the islands of the Mediterranean and the European Union. And in this way having a transfer of structure and robustness, where the dynamic element stabilizes the stability of land through the sea. There is no paradox but instead a non-conventional solution to the problem of our entity. The Aegean Sea via topostrategy is not presented as a margin with inaccessible lines but a robust structure, complementary to cohesion.