The EU’s most important achievement, according to the committee, has been "the successful struggle for peace and reconciliation and for democracy and human rights". The work of the EU represents "fraternity between nations" and amounts to a form of the "peace congresses" cited by Alfred Nobel as criteria for the Peace Prize in his 1895 will.
Nobel Peace Prize 2012 awarded to European Union – Press pack
The EU has received the 2012 award for advancing the causes of peace, reconciliation, democracy and human rights in Europe. In its announcement on 12 October, the Norwegian Nobel Committee said its decision was based on the stabilising role the EU has played in transforming most of Europe from a continent of war to a continent of peace.