The Battle of Badr was a decisive battle fought in 624 CE between Muhammad and his followers from Medina and the Quraysh tribe of Mecca. The Quraysh sent a force of 1000 men to attack the outnumbered Muslim force of 313 men after some of Muhammad's followers intercepted a Quraysh trade caravan. Through divine intervention in the form of an army of angels, the Muslims were able to defeat the Quraysh and kill many of their leaders, including Abu Jahl, establishing the religion of Islam in Arabia.