With the outbreak of the Russo-Turkish war in 1768, Rumyantsev took command of the army sent to capture Azov. He thoroughly defeated the Turks in the Battles of Larga and Kagula, crossed the Danube and advanced to Romania. For these dazzling victories he became Field-Marshal and gained the victory title "Zadunaisky" (meaning "Trans-Danubian"). When his forces approached Shumla in 1774, the new Sultan Abdul Hamid I started to panic and sued for peace, which Rumyanstev signed upon a military tambourine at the village of Küçük Kaynarca.