Pursuant to Article 21 TEU the Union's external action is to be guided by the principles which have inspired its own creation, namely democracy, the rule of law, the universality and indivisibility of human rights and fundamental freedoms, respect for human dignity, the principles of equality and solidarity, and respect for the principles of the United Nations Charter and international law.
De bhun Airteagal 21 CAE, tá gníomhaíocht sheachtrach an Aontais le bheith bunaithe ar na prionsabail a spreag a chruthú, eadhon an daonlathas, an smacht reachta, uilechoitinne agus dodhealaitheacht chearta an duine agus na saoirsí bunúsacha, an meas ar dhínit an duine, prionsabail an chomhionannais agus na dlúthpháirtíochta, agus an meas ar phrionsabail Chairt na Náisiún Aontaithe agus ar phrionsabail an dlí idirnáisiúnta.