Different Muslim movements through history had linked pacifism with Muslim theology. However, warfare has been an integral part of Islamic history both for the defense and the spread of the faith since the time of Muhammad.
The teachings in the Qur'an and Hadith allow for wars to be fought if they can be justified. According to James Turner Johnson, there is no normative tradition of pacifism in Islam.
Jihad (/dʒɪˈhɑːd/; Arabic: جِهَاد, romanized: jihād [dʒiˈhaːd]) is an Arabic word that means "exerting", "striving", or "struggling", particularly with a praiseworthy aim. In an Islamic context, it encompasses almost any effort to make personal and social life conform with God's guidance, such as an internal struggle against evil in oneself, efforts to build a good Muslim community (ummah), and struggle to defend Islam. Literally meaning 'struggle', the term is most frequently associated with warfare.
Jihad is classified into inner ("greater") jihad, which involves a struggle against one's own passions and impulses, and outer ("lesser") jihad, which is further subdivided into jihad of the pen/tongue (debate or persuasion) and jihad of the sword (warfare). Much of Muslim opinion considers inner jihad to have primacy over outer jihad. The analysis of a large survey from 2002 reveals considerable nuance in the conceptions of jihad held by Muslims around the world, ranging from righteous living and promoting peace to fighting against the opponents of Islam.