It would be a matter for the Member States, including Ireland, to decide, in accordance with the provisions of the Treaty of Lisbon and with their respective constitutional requirements, whether or not to adopt a common defence.
Is faoi na Ballstáit, lena n-áirítear Éire, a bheadh sé a chinneadh, i gcomhréir le forálacha Chonradh Liospóin agus lena rialacha bunreachtúla faoi seach, an nglacfar nó nach nglacfar comhchosaint.