Abdullah Yusuf Azzam was a Palestinian Sunni Islamic scholar and theologian and founding member of Al-Qaeda. Azzam preached both defensive and offensive jihad by Muslims to help the Afghan mujahideen against the Soviet invaders. He raised funds, recruited and organised the international Islamic volunteer effort of Afghan Arabs through the 1980s, and emphasised the political aspects of Islam.
Azzam was a teacher and mentor of Osama bin Laden and persuaded bin Laden to come to Afghanistan and help the jihad. As the war drew to an end, they both established Al-Qaeda. He was also a co-founder of Lashkar-e-Taiba.
Azzam was killed by a car bomb while within Peshawar, Pakistan in 1989.