Unia Europejska między Brexitem a nowym Traktatem Elizejskim

The aim of the study is to analyze the effects of the new Élysée Treaty in correlation with Brexit. We formulate the thesis that Brexit in conjunction with the new Élysée Treaty sets out a new formula for institutional European integration – the construction of a unipolar system with France-Germany as a pole. The research is interdisciplinary – economic and legal. The results of the study allow to recognize that 1) deepened German-French cooperation creates a new actor in regional and global relations; 2) the Treaty based (French-German) duumvirate changes the EU system; 3) Brexit has destroyed the balance of power in the EU, as well as deprived the union of the benefits of triangulation of the bloc of the three largest EU Member States.