Ramba uchinyora ndima iyi - VaRoma havana kuona madzinza eArab akavhiringidzika erenje reArabia sevavengi vane ngozi mukutanga kwezana ramakore rechinomwe. Zvisinei, vaGhassanid navaLakhmids vechiArabhu vakanga vabatanidzwa zvikuru muhondo dzeRoma nePersia, uye kuArabization kweNear East kwakanga kwatanga. Madzinza evaArabhu akagara munyika dzaiva nevanhu vashoma pedyo nomuganhu weRoma nePezhiya, uye maguta eSiriya neMesopotamia akanga achibudirira akakwezva vaArabhu. Mamiriro acho ezvinhu akachinja nokukurumidza nokubatanidzwa kwamarudzi omurenje nomuprofita wechiIslam Muhammad pakati pa622 na632. Pashure pokufa kwake, sangano rake rokunamata mwari mumwe chete rakatungamirirwa navateveri vake, vanonzi caliphs, avo vakanga vari vose vari vaviri vatungamiriri vezvamatongerwe enyika nevorudzidziso vomunzanga yechiIslam. Vachiita jihad, kana kuti hondo tsvene yechiIslam, mukurwisana ne"vasingatendi", vaArab vakadenha ndima dzeSiria dzeRoma ndokukunda Dhamasiko muna 633. Heraclius akaendesa uto reRoma kunorwisa vaArabhu, asi vakaparadza uto reRoma paRwizi rweYarmuk
muSiria muna 636. Sezvo hondo yokurwisana nePersia yakanga yanetesa umambo, Heraclius aisagona kutumira uto rechipiri rokurwisa vapambi uye vakakunda Siria. Makore maviri gare gare, vaArab vakakurira vaPersia zvikuru paQadisiyyah. Sezvo vaArabhu vakaramba vachipinda, Heraclius akatumira vashandi kuEgipita, asi havana kukwanisa kumisa vapambi vacho. Patriarch Cyrus weAlexandria akapa mutero wegore negore we200,000 kumukuru mukuru wechiArab Amr ibn al-As nokuda kwechisungo uye akaenda kuConstantinople kundotsvaka kusimbiswa kwoumambo. Heraclius akaramba, zvichida nokuti aiziva kuti mutero waisazomisa vakundi pakupedzisira. Pakusvika kwaKoreshi, Heraclius akanga ava kutofa, uye akafa musi wa11 February 641.