Hence, it is of foremost importance to build on the conclusions of the European Council, which at its meeting on 26 and 27 June 2014 agreed that: "… the concept of ever closer union allows for different paths of integration for different countries, allowing those that want to deepen integration to move ahead, while respecting the wish of those who do not wish to deepen any further"13.This statement provides the basis for a differentiated European Union where all 28 Member States participate, if necessary to varying extents, thus facilitating reinforced cooperation in strategic fields, but which remains open to all Member States to participate fully.