Mezue ahịrịokwu na-esonụ: The preparatory artillery bombardment of Bulgarian and Central Powers positions for
Agha Dobro Pole malitere na 14 Septemba. N'echi ya, ndị France na ndị Serbia wakporo ma weghara ebe ha na-aga. Na 18 Septemba, ndị Gris na ndị Britain wakporo ma ndị Bulgaria kwụsịrị ha na nnukwu mfu na Agha Doiran. Ndị agha Franco-Serbian gara n'ihu na-aga n'ihu ma n'echi ya, ụfọdụ ndị Bulgarian malitere inyefe ọnọdụ na-enweghị ọgụ na ndị isi Bulgarian nyere iwu ịlaghachi azụ.