Hizb ut-Tahrir (Party of Liberation) is a transnational Islamic religious-political organization that has a presence in over 20 countries across the world. HT was founded in Jerusalem in 1953 by Taqi al-Din al-Nabhani. HT believes in the Ummatic concept. Its website openly declares that: "It aims to revive the Islamic Ummah from the severe decline that it had reached and to liberate it from the thoughts, systems and laws of Kufr, as well as the domination and influence of the Kufr states.