 Ramba uchinyora ndima ino - Panguva yaitonga, Petar akaramba aine ukama hwakanaka namambo weByzantium Leo VI the Wise akatonga 886912 namambo Simeon I weBulgaria, mwanakomana wechipiri wamambo Boris, 893-927. Akanga akabatanidzwa naSimeoni nechibvumirano chorugare asiwo netsika yekumstvo. Kunetsana pakati peumambo hweBulgaria neByzantium kwakaguma nehondo yeByzantium neBulgaria muna 894, iyo yakapfuurira seByzantine-Bulgarian hondo ya913-927. Ikoku kwakatapura Serbia zvikuru. Imwe yenguva dzinokosha zvikuru muhondo yechipiri iyi yaive Hondo yeAnchialus, yakaitwa musi wa 20 Nyamavhuvhu 917, apo Simeon akakunda vaByzantine. Petro sezviri pachena akanamatira kurutivi rweByzantium. Hondo isati yatanga, pamahombekombe erwizi rwaNeretva, akasangana naLeo Rhabdouchos, mutungamiriri weuto reByzantium weDyrrachium. Michael Višević, mutongi weZachlumia, uyo aiva noukama hwakanaka naSimeoni, akatumira izvi kumutongi weBulgaria, achipomera Petar kuti akanga achibvumirana nevaByzantine. Akataurawo kuti vaByzantium vari kupa Peter chiokomuhomwe kuti ashande pamwe nevaHungary pakurwisa pamwe chete Bulgaria. Izvi zvakashandiswa naSimeon kutanga hondo dzeBulgaria-Serbia dza917-924. Mauto eBulgaria akarwisa Serbia aitungamirirwa naPavle Branović, mwanakomana waBran akanga apofumadzwa. Pasinei zvapo nokuchengetedzwa ikoko kwakapiwa Petar nemhaka yeukama hwake hwapedyo naSimeon, akabatwa ndokuendeswa kuBulgaria uko akafira mutorongo, nepo Pavle akava mutongi mutsva pakupera kwa917. 