The Battle of Uhud
In 625, Abu Sufyan ibn Harb once again led a Meccan force against Medina. Muhammad marched out to meet the force but before reaching the battle, about one third of the troops under Abd-Allah ibn Ubayy withdrew. Nevertheless the Muslims marched forth into battle and originally were somewhat successful in pushing the Meccans back. However, a strategic hill was lost which allowed the Meccans to come from behind the Muslims so they suffered defeat in the Battle of Uhud. However, the Meccans did not capitalize on their victory by invading Medina and so returned to Mecca.
Meanwhile, conflict with the Jews arose again: one of the Banu Nadir's chiefs, the poet Ka'b ibn al-Ashraf, was killed for breaching the Constitution of Medina and after the battle of Uhud, Muhammad accused the tribe of treachery and plotting against his life and expelled them from the city after a short fight
