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Modern European socialism, usually known as European socialism  or simply Eurosocialism, is the dominant version of social democracy in the European Union. It is a centre-left political position drawing on social notions such as social progress, freedom, equality, solidarity and justice. Socialism in Europe is primarily associated with the idea of progressive and social policies, which are mainly advocated by the PES and primarily opposed by the conservative and christian-democrat European People's Party. European socialists are defined (or define themselves) with one or more of the following terms: social democrats, liberal socialists, social liberals,[note 1] christian socialists, labourists and progressives. They support the values of europeanism and have the goal to establish a federal Europe.