Termination of the conquests in Imam Ali's time: why and how?

Muslim conquests starting from the demise of the Holy Prophet (Pbuh) in Abubakr’s time and its continuation during Omar-bin-Khattab and Othman’s caliphate terminated in Imam Ali’s (Pbuh) time. The reason for this termination is not because of the internal crisis or civil conflicts faced by Imam, but it originated from Imam Ali’s prospect towards creation, mankind, human rights, and society.
In order to evaluate the aforementioned claim, the present study, designed in three sections ( an introduction and two sections), tries to present and provide reasons for the termination of the conquests during Imam Ali’s caliphate.
Examining different viewpoints regarding Imam’s prospect towards creation, being, and mankind, the present paper tries first to provide the historical facts about Imam’s conduct and attitude on the conquests in general. It then moves on to his approach and attitudes towards conquests carried out before his caliphate. The research adopted a qualitative method through an analytical-descriptive approach on the basis of historical facts, studies and sources.