Current Trends in Islamist Ideology

Malik Mumtaz Hussain Qadri shouts, 'We are ready to sacrifice our life for the prestige of the Prophet Mohammad' Islamabad on January 5, 2011 a day after the assassination of the governor of Punjab province Salman Taseer. (AAMIR QURESHI/AFP/Getty Images)

Map Of The Umayyad Caliphate Empire In 750 And The Islamic Empire In 1215. (Universal History Archive/UIG via Getty Images)

Screenshot from a propaganda video uploaded on June 11 by the Islamic State allegedly shows militants driving at an undisclosed location in Iraq's Nineveh province.

City market, Marrakech, Morocco. (Jeremy Woodhouse/Getty Images)

Place Jemaa El Fna (Djemaa El Fna), August 12, 2012. (Godong/UIG via Getty Images)

Saudi Defence Minister Mohammed bin Salman (2nd L), who is the desert kingdom's deputy crown prince, at the 4th Summit of Arab States and South American countries in Riyadh, on November 11, 2015. (FAYEZ NURELDINE/AFP/Getty Images)

An Egyptian protester chants during a protest following midday prayers in Tahrir Square on September 14, 2012 in Cairo, Egypt. (Ed Giles/Getty Images)

Kashmiri protesters displaying the flags of ISIS and Pakistan on June 27, 2015 in Srinagar, India. (Waseem Andrabi/Hindustan Times via Getty Images)

Fighters from Al-Qaeda's Syrian affiliate Al-Nusra Front drive in the northern Syrian city of Aleppo flying Islamist flags as they head to a frontline, on May 26, 2015. (Fadi al-Halabi/AFP/Getty Images)