Hizb ut-Tahrir (Arabic: حزب التحرير‎ Ḥizb at-Taḥrīr; Party of Liberation, often abbreviated as HT) is a pan-Islamist and fundamentalist group seeking to re-establish "the Islamic Khilafah (Caliphate)" as an Islamic "superstate" where Muslim-majority countries are unified and ruled under Islamic Shariah law, and which eventually expands globally to include non-Muslim states. In Central Asia, the party has expanded since the breakup of the Soviet Union in the early 1990s from a small group to "one of the most powerful organizations" operating in Central Asia. The region itself has been called "the primary battleground" for the party. Uzbekistan is "the hub" of Hizb ut-Tahrir's activities in Central Asia, while its "headquarters" is now reportedly in Kyrgyzstan.