In October 2014 , US Vice President Joe Biden stated that Turkey , Saudi Arabia and the United Arab Emirates had " poured hundreds of millions of dollars and tens of thousands of tons of weapons into anyone who would fight against Al-Assad , except that the people who were being supplied were al-Nusra , and al Qaeda , and the extremist elements of jihadis coming from other parts of the world . " Anders Behring Breivik , the perpetrator of the 2011 Norway attacks , was inspired by Al-Qaeda , calling it " the most successful revolutionary movement in the world . " While admitting different aims , he sought to " create a European version of Al-Qaida . " Islamic extremism dates back to the Kharijites of the 7th century . From their essentially political position , the Kharijites developed extreme doctrines that set them apart from both mainstream Sunni and Shiʿa Muslims . The Kharijites were particularly noted for adopting a radical approach to Takfir , whereby they declared other Muslims to be unbelievers and therefore deemed them worthy of death
2011 Norway attacks
2011 Norway attacks
Al-Qaeda