Pedzisa mutsara unotevera:
Muhondo yeNahavand, Omar akatanga kurwisa kwakakura kweSassanid Persian Empire. Kupinda kwacho kwakanga kuri nhevedzano yezviitiko zvakanyatsorongwa zvakarongwa kuti zviparadzanise uye kuparadza zvavaida. Omar akatanga kupinda nechisimba achirwisa mwoyo chaiwo wePersia, nechinangwa chokuparadzanisa Azerbaijan nePersia yokumabvazuva. Ikoku kwakateverwa nokukurumidza nehondo dzenguva imwe chete paAzerbaijan neFars. Tevere, Sistan neKirman zvakatorwa, nokudaro zvichibvisa nhare yePersia, Khurasan. Hondo yokupedzisira yakatangwa kuKhurasan, uko, pashure peHondo yeRwizi rweOxus, umambo hwePersia hwakaguma kuvapo, uye Yazdegerd III akatizira kuCentral Asia.