The EU was based on the grounds of solidarity and the unanimity requirements ensures that no state will be repressed for the “greater good”  While understanding the need to compromise, members of the EU are very different meaning that hardly any important decision made will fit all universally. The unanimity requirement is needed only in few exceptional cases, such as for common foreign and security policy, which is completely understandable, since it is hardly imaginable that a successful union can act internationally as a whole without the consent of all members. Members clearly need to decide between them, as they do now, which areas need unanimity. It will then only be applied to issues where there should be no shortcuts when discussing and making decisions. The unanimity requirement provides states with a guarantee that they will not be left out of the debate and that their voice matters equally, whatever the size and international position of the state. Without this guarantee, it is beyond doubt that trust among the members would be eroded, damaging the union’s unity of purpose.