This paper argues that the European Union authorities could have misread the military's role in Turkish modernisation, and this misreading perhaps opened the path for the Adalet ve Kalkınma Partisi's (AKP) growing authoritarianism. To test this argument, the paper first outlines a theoretical framework by discussing the influence of secularisation theory in the modernist literature. Then it compares the secularisation theory with its postsecular critics. Through this, the paper aims to understand how a nongovernmental institution such as the military may lead to a secular transformation in a nation such as Turkey. Second, the paper makes a brief observation of secularist implementations in Turkey by taking into account the military's increasing supervision over politics and its influence on secularisation. Then, in light of the findings in the first and second sections, the paper finally discusses the potential relationship between the demilitarisation of politics and the rising AKP authoritarianism by considering the secularist and postsecularist approaches.