Cross-border cooperation is the collaboration between adjacent areas across borders. In the European Union this is one of the forms of territorial cooperation (in addition to transnational

International

----International mostly means something that involves more than one country. The term international as a word means involvement of, interaction between or encompassing more than one nation, or generally beyond national boundaries...

 and interregional cooperation). The European model is very diverse with cooperation between border regions or municipalities, or through specific cooperation structures. These structures are usually composed by public authorities (municipalities, districts, counties, regions) from different countries organized in working communities, euroregions or EGTCs (European Grouping of Territorial Cooperation).