Jihadism is a neologism for militant Islamic movements that are perceived as existentially threatening to the West. It has been applied to various insurgent Islamic extremist, militant Islamist, and terrorist individuals and organizations whose ideologies are based on the Islamic notion of jihad. It has also been applied to various Islamic empires in history, such as the Umayyad Caliphate and the Ottoman Empire, who extensively campaigned against non-Muslim nations in the name of jihad.
Afghan mujahideen praying in the Kunar Province, Afghanistan (1987)
Osama bin Laden and Ayman al-Zawahiri of al-Qaeda promoted the overthrow of secular governments.
U.S. President Ronald Reagan meeting with Afghan mujahideen leaders in the Oval Office in 1983
Islamic extremism, Islamist extremism or radical Islam refers a set of extremist beliefs, behaviors and ideology within Islam. These terms remain contentious, encompassing a spectrum of definitions, ranging from academic interpretations to the notion that all ideologies other than Islam have failed and are inferior. Furthermore, these terms may extend to encompass other sects of Islam that do not share such extremist views.
2012 Sydney: Muslims protesting against the release of Innocence of Muslims
Osama bin Laden and Ayman al-Zawahiri of al-Qaeda have promoted the overthrow of secular governments.