German Constitutional Court decision of 30 June 2009 on the compatibility of the Lisbon Treaty with the German Constitution – ‘Identity’ key word of the Lissabon-Urteil – The national identity clause in the current Union Treaty – Nation: people and state; diachronic and synchronic identity – Constitutional patriotism – The national identity clause in the Lisbon Union Treaty – Volksidentität and state identity – Verfassungsidentität: diachronic identity – Identité constitutionnelle de la France: synchronic identity – confidence and diffidence in the Union