Therefore, the type of state structure of a Member State, for instance whether it is a republic or a monarchy, the governmental system of a Member State, for instance whether it is a parliamentary, presidential or a semi-presidential system, whether it is a federation or a unitary state as such are determined by those Member States themselves. The EU does not have the power to regulate those issues; in fact it has to respect the constitutional structures of its Member States. However, the Member States, despite being free to design their own state structure, should respect and embrace the fundamental values of the Union which are enshrined in Article 2 of the TEU. Consequently, whatever state structure is adopted by a Member State, this structure should demonstrate the basic requirements of democracy, respect for human rights and rule of law, amongst others.