"Jihadism" has been defined otherwise as a neologism for militant, predominantly Sunnī Islamic movements that use ideologically motivated violence to defend the Ummah (the collective Muslim world) from foreign Non-Muslims and those that they perceive as domestic infidels.

ISIL adheres to global jihadist principles and follows the hard-line ideology of al-Qaeda and many other modern-day jihadist groups. For their guiding principles, the leaders of the Islamic State ... are open and clear about their almost exclusive commitment to the Wahhabi movement of Sunni Islam.

The underlying element in the radical Islamist worldview is ahistoric and dichotomist: Perfection lies in the ways of the Prophet and the events of his time; therefore, religious innovations, philosophical relativism, and intellec- tual or political pluralism are anathema.

Ansar al-Shari'a (AAS), Al-Qaida of Jihad Organization in the Arabian Peninsula, Tanzim Qa'idat al-Jihad fi Jazirat al- Arab, Al-Qaida Organization in the Arabian Peninsula (AQAP), Al-Qaida in the South Arabian Peninsula, and Al-Qaida in Yemen (AQY).