Spanish unionism is considered by Basque and Catalan nationalist parties as a political ideology identified by its denial of the exercise of the right of self-determination of the peripheral nationalities of Spain or sometimes by the simple defense of Spain as a nation.[5] Therefore, the label has been applied to parties such as the People's Party,[6] Spanish Socialist Workers Party (PSOE)[7] (however, sometimes PSOE is seen as more sympathetic to Spain's nationalist movements),[8] Union, Progress and Democracy (UPYD) and Citizens-Party of the Citizenry (C's).