A European political alliance is an entity operating transnationally in Europe, especially across the member states of the European Union.[note 1] European political alliances differ by their level of integration, their role, and their membership. European political alliances encompass European political parties, Political groups of the European Parliament, other party groups, as well as various entities informally referred to as "political organisations", "political movements", or "transnational parties", and sometimes erroneously as "European parties".
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