It is true that jihad is one of the most important teachings of Islam. But jihad is not synonymous with war. In Islam another word is used for war and fighting. This word is ‘qital.’ When the Qur’an refers to war or fighting, it uses the word qital and not jihad.
Jihad literally means to strive or to struggle. So jihad actually means peaceful struggle, especially for da‘wah work. The Qur’an says:
Do great jihad with the help of the Qur’an. (25:52)