The research intends to study the Islamic and Western political perspectives or philosophies to analyze the causes of terrorism in the said areas after 9/11 in Pakistan. Islamic and Western theoretical understanding reveals that terrorism in Pakistan tribal areas was caused by many factors, including weak governance, insecurity, injustice, ill government policies, and a clash between society and state. Most of them lead to the unrest situation in the region. The people still stood to establish the Islamic State and the implementation of Islamic Law (Shariah). Ideological, religious motivation mostly uses some short-term objectives and improper means by state and non-state actors. That is also a leading cause that provided a possible environment for anti-state armed actors in FATA and KP Pakistan. Qualitative research methodology has been adopted for the research to understand Islamic and western political perspective regarding terrorism. The results showed a significant correlation between government policies and the incidents of terrorism. Policies of the government have everlasting impacts on the phenomenon of terrorism in one way or the other. The most crucial cause that always played its role in motivating people of FATA and KP is an ideological narrative along with the participation of other causes like injustice, economic deprivation and other factors as mentioned above.