During the Russo-Turkish War, 1768-1774, Pyotr Melissino was in charge of the Russian artillery. His efficient command helped Russian forces prevail against a fourfold numerical superiority of the Ottomans at Khotin, Larga, and Kagula. In 1783, he was appointed Director of the Artillery and Engineering Corps in St. Petersburg. He is remembered as an organizer of the artillery education in the Russian Empire. After the ascension of Emperor Paul, Melissino was put in charge of the entire Russian artillery but died the following year.