The EU or the European Union is a political and economic union of several European countries (currently 28 member-states), that includes most of the jusridictions on the continent. The EU has developed in is actively promoting a range of policies aimed towards bringing the member-states together in all respects, as well as making their cooperation easier. These policies include:

common internal market
standardised system of laws
non-restrictive travel area
common visa policy
free circulation of goods and services
free movement of labour
All these and many other advantages are available to any resident of the EU, including citizens and migrants with residence permits, either temporary or permanent.