Oleksander Osetsky (June 24, 1873 Kremenets

Kremenets

Kremenets is a city in the Ternopil Oblast of western Ukraine. It is the administrative center of the Kremenets Raion , and rests 18 km north-east of the great Pochayiv Monastery...

, Volhynian Governorate

Volhynian Governorate

Volhynian Governorate was an administrative-territorial unit initially of the Russian Empire, created in 1792 after the Second Partition of Poland from the territory of the Kiev Voivodeship and Wołyń Voivodeship...

, now Ternopil Oblast

Ternopil Oblast

Ternopil Oblast is an oblast' of Ukraine. Its administrative center is Ternopil, through which flows the Seret River, a tributary of the Dnister.-Geography:...

 – February 26, 1937 Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

) was a Ukrainian

Ukraine

Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

 military officer. He was a general in the army of the Ukrainian People's Republic

Ukrainian People's Republic

The Ukrainian People's Republic or Ukrainian National Republic was a republic that was declared in part of the territory of modern Ukraine after the Russian Revolution, eventually headed by Symon Petliura.-Revolutionary Wave:...

 (UNR).

From 1914 to 1918, during the First World War, he served in and commanded a regiment

Regiment

A regiment is a major tactical military unit, composed of variable numbers of batteries, squadrons or battalions, commanded by a colonel or lieutenant colonel...

 in the Imperial Russian Army

Imperial Russian Army

The Imperial Russian Army was the land armed force of the Russian Empire, active from around 1721 to the Russian Revolution of 1917. In the early 1850s, the Russian army consisted of around 938,731 regular soldiers and 245,850 irregulars . Until the time of military reform of Dmitry Milyutin in...

 and reached the rank of Brigadier General

Brigadier General

Brigadier general is a senior rank in the armed forces. It is the lowest ranking general officer in some countries, usually sitting between the ranks of colonel and major general. When appointed to a field command, a brigadier general is typically in command of a brigade consisting of around 4,000...

. When the Russian Revolution broke out in 1917, he joined the UNR Army. He served as a commander in the Poltava

Poltava

Poltava is a city in located on the Vorskla River in central Ukraine. It is the administrative center of the Poltava Oblast , as well as the surrounding Poltava Raion of the oblast. Poltava's estimated population is 298,652 ....

 region, commander of a Railroad Guard Corps under the Hetman government, and commander of the Kholm Group on the Polish front in 1919, during the Polish-Ukrainian War

Polish-Ukrainian War

The Polish–Ukrainian War of 1918 and 1919 was a conflict between the forces of the Second Polish Republic and West Ukrainian People's Republic for the control over Eastern Galicia after the dissolution of Austria-Hungary.-Background:...

. From December 1918 to January 1919 he was minister of defense of the Ukrainian People's Republic, and then the UNR Army otaman. In 1920 he headed a UNR military-diplomatic mission to Belgium

Belgium

Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

. He emigrated to France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and died in Paris in 1937.