Abdullah Azzam
Abdullah Azzam (1941-1989) was an influential Palestinian Salafi jihadist who popularized the concept of 'defensive jihad' during the Soviet invasion of Afghanistan to encourage foreign volunteer fighters to travel to join the mujahideen movement. After the Soviet withdrawal from Afghanistan in 1988, he began to advocate for battles on behalf of Muslims all over the world, and became known as the "father of global jihad." Azzam was also a mentor to Osama bin Laden. He was assassinated in a bomb blast in 1989 in Peshawar, Pakisatan