European Territorial Cooperation is the instrument of cohesion policy that aims to solve problems across borders and to jointly develop the potential of diverse territories. The overarching objective of territorial cooperation is to promote a harmonious economic, social and territorial development of EU as well as to reduce the negative effects of borders. Territorial cooperation consists of cross-border, transnational and interregional cooperation. Legal basis for territorial cooperation is provided for in Article 178 of the Treaty on the Functioning of the EU and Regulation (EU) No 1299/2013. In the 2014‑2020 budget period, EU allocated EUR 9.8 billion to territorial cooperation.