A cikin 610, a lokacin Byzantine <unk> Sasanian War na 602 <unk> 628, Heraclius ya zama sarki na Daular Byzantine, bayan ya kifar da Phocas. A halin yanzu, Daular Sasanian ta mamaye Mesopotamia kuma a cikin 611 sun mamaye Siriya kuma suka shiga Anatoliya, suna mamaye Caesarea Mazaca (yanzu Kayseri, Turkey). Heraclius, a cikin 612, ya yi nasarar fitar da Farisawa daga Anatoliya, amma an ci nasara a 613 lokacin da ya kaddamar da babban hari a Siriya a kan Farisawa. A cikin shekaru goma masu zuwa Farisawa sun sami damar cinye Falasdinu da Misira. A halin yanzu, Heraclius ya shirya don kai hari da sake gina sojojinsa. Shekaru tara bayan haka, a cikin 622, Heraclius ya kaddamar da yaƙin sa. Bayan nasararsa a kan 'yan tawayen Larabawa da' yan tawayen Larabawa a Arabiya da kuma mafi yawan ƙasashen da suka mamaye Larabawa a karkashin Muhammad Bakr Bakr da abokansu, sai suka mamaye Siriya suka shiga Anatoliya, suka mamaye
Abu Bakr