Interreg was developed as a Community Initiative in with a budget of just 1 billion EUR covering exclusively cross-border cooperation in 1990. Later, Interreg has been extended to transnational and interregional cooperation. For 2014-2020 European Territorial Cooperation is one of the two goals of Cohesion Policy besides investment for Growth and Jobs. Over the years Interreg has become the key instrument of the European Union to support cooperation between partners across borders. The aim: to tackle common challenges together and find shared solutions - whether in the field of health, research and education, transport or sustainable energy. Interreg programmes are funded by the European Regional Development Fund to support the harmonious development of the European Union's territory at different levels.