The Battle of Khaybar (Arabic: غَزْوَة خَيْبَر) was fought in 628 CE between the early Muslims led by Muhammad and Jews living in Khaybar, an oasis located 150 km from Medina in the northwestern Arabian Peninsula (present-day Saudi Arabia). Jewish tribes reportedly arrived in the Hejaz region in the wake of the Jewish–Roman wars and introduced agriculture, putting them in a culturally, economically and politically dominant position. According to Islamic sources, Muslim troops marched on Khaybar and engaged the Jews, who had barricaded themselves in forts after breaching an agreement with the Muslims.