From this struggle for the leadership mantle of Islam, a particular brand of Islamic extremism developed and became militarized, thus giving rise to the forces of al-Qaeda and ISIS decades later. On Iran’s west, Saddam Hussein assumed Iraq’s presidency in a brutal bloodbath, turning his military on what he perceived as a vulnerable Persia in the following year. Lacking allies in an increasingly unstable and threatening Middle East, post-revolutionary Iran took its friends where it could find them, targeting Shi’ite co-religionists in Damascus and southern Lebanon in need of oil and financing.