[4] Disturbed by the creation of the state of Israel and the 1948 Arab–Israeli War and occupation of Palestine, he founded the Hizb ut-Tahrir party in 1953.

[5] Other causes of stagnation included the Ottoman Empire's closing of the doors of ijtihad, its failure to understand "the intellectual and legislative side of Islam", and neglect of the Arabic language.

[6] In his most famous works, written in the early 1950s, al-Nabhani expressed a radical disillusionment with the secular powers that had failed to protect Palestinian nationalism.

[5] He argued for a new caliphate that would be brought about by "peaceful politics and ideological subversion"[7] and eventually cover the world replacing all nation states.

Its political and economic order would be founded on Islamic principles, not materialism that, in his view, was the outcome of capitalist economies.