"Lublin Triangle": institutional preconditions and economic potential of creation

In the context of the cardinal aggravation of natural, economic and institutional factors of international instability, which became especially evident at the turn of the XX - XXI centuries, the problems of viability of the officially announced summer 2020 decision to create the "Lublin Triangle" as a platform for cooperation between Poland, Lithuania and Ukraine in the security, economic and cultural spheres. In essence, the institutional preconditions and genesis of the developments around the Union of Lublin during the second half of the XIVth - first two decades of the XXIst century and the economic potential of the "Lublin Triangle" in terms of the current European situation are analyzed. A principled approach to the events related to the Union of Lublin, which in the common consciousness is seen as a prototype of the "Lublin Triangle, in the scientific achievements and ideas of iconic figures of the political establishment of Poland, Lithuania and Ukraine. The approach is substantiated that the broad institutional and economic preconditions for the founding of the "Lublin Triangle" were laid much earlier: by the Union of Krewo in 1385 - the world's first interstate allied-unifying entity. It has been proved that in terms of potential domestic market volumes, gross domestic product level and trade turnover between Poland, Lithuania and Ukraine, the Lublin Triangle objectively has a high competitive position in the system of modern international division of labor within the European Union. In order to substantiate the competitiveness of the "Lublin Triangle" the most promising areas of economic cooperation between Poland, Lithuania and Ukraine at the interstate level and at the level of business entities have been identified on a sectoral basis, as well as prospects for further study of the problem.