 Leo akachengetedza miganhu yeHumambo nekukoka vagari veSlavic mumatunhu asina vanhu uye nekudzorera mauto kuti ashande; apo Umayyad Caliphate yakadzokorora kupamba kwayo muna 726 na739, sechikamu chemishandirapamwe yaHisham ibn Abd al-Malik, mauto eArab akarohwa zvine mutsindo, kunyanya kuAkrinonmuna 740. Nhamburiko dzake dzechiuto dzakapedzeredzwa nesonganiro dzake navaKhazars navaGeorgia. 