Crusaders is a term used by Islamists to refer to any Western presence in the Middle East, though it is most often used to refer to the U.S. In addition, anti-Muslim extremists in the United States often... Read more

AQIS (Al Qaeda in the Indian Subcontinent) is based in Pakistan and Afghanistan and formed from a collection of pre-existing Islamist groups in 2014. It mainly targets Muslims living in India and Pakistan, but also releases English-language... Read more

Green birds references a hadith which states that the souls of martyrs ascend to heaven in the form of green birds. Islamist extremists online often use the term as a coded way of indicating that they intend... Read more

The Islamic State Hacking Division (ISHD), also known as the United Cyber Caliphate, is an umbrella name for a number of online hacking groups supportive of ISIS. Its first operations were against U.S. websites in January 2015... Read more

Islamist extremism is a marginal and rigid interpretation of Islam which refuses to acknowledge the legitimacy of other faiths and secular forms of government. Instead, Islamist extremists declare anyone who does not adhere to their restrictive interpretation... Read more

"Khaybar Khaybar ya yahud" is the first verse of an antisemitic chant which references a battle fought in 628 CE in the Khaybar Oasis, in the Hejaz province of modern-day Saudi Arabia. During this battle, the army... Read more

The Abu Sayyaf Group (ISIS Philippines), also referred to as ISIS East Asia, is a conglomeration of smaller Filipino Islamist groups which pledged allegiance to ISIS starting in 2014. The groups have attracted Western fighters, including from... Read more

The Afghan mujahideen were the religiously-motivated insurgents who banded together to oppose the Soviet invasion of Afghanistan in 1979. Most of the major leaders in Islamist extremist groups initially trained, fought and rose to prominence during this... Read more

Al Qaeda in the Arabian Peninsula (AQAP) is an Al Qaeda affiliate group based in the Arabian Peninsula and was formed in January 2009. It operates primarily in Yemen and occasionally recruits from Saudi Arabia. Of all... Read more