The correct option is A Europe Unification
The Maastricht Treaty is officially the Treaty on European Union, it was signed on 7 February 1992 by the members of the European Communities in Maastricht, Netherlands, to further European integration. It established the European Union.
European citizenship was created, allowing citizens to reside in and move freely between the Member States. a common foreign and security policy was established. closer cooperation between police and the judiciary in criminal matters was agreed.