Education
He was educated at the 1st Moscow military school, the Saint Nicholas Cavalry.
He was educated at the 1st Moscow military school, the Saint Nicholas Cavalry.
Other uses of writing his surname are Kosogovsky, Kosagovsky, Kosagovsky, Kosogovsky. After attending, he was enlisted into the 12th Hussars Regiment Akhtyrsky (1876). According to the General Staff service record, he later became a senior of the al-T Staff 2nd Caucasus Cossack division.
In May 1884, he became the new commander of the Persian Cossack Brigade.
He also served in the Russo-Turkish War (1877-1878) and the Russo-Japanese War.