External border of the European Union

The border of the European Union consists of European Union (EU) countries' borders with countries which are not members of the EU.
Border status and cooperation.
In 2004 the European Union developed the European Neighbourhood Policy (ENP) for the promotion of cooperation between the EU and its neighbors to the East and South of the European territory of the EU (i.e., excluding its outermost regions), which, in part, includes the Cross-Border Cooperation programme aimed at the promotion of economic development in border areas and ensuring border security.