Took part in the Russo-Japanese war, 1904-1905. On active service in the Russian Army during World War I. Took command of the 1st Polish Legionnaires Corps, organized by the Provisional Government in August 1917. After the Bolshevik take-over, refused to recognize the communist authorities and raised a rebellion in Byelorussia, January 1918.
His corps, centred around Bobruisk, fought against the Red forces, commanded by Vatsietis and Pavlunovskii (both Cheka). Occupied Minsk and entered into an agreement with the German army. After Polish independence, joined the Polish army.
Became a rival of Pilsudski, and was removed from his command, 1919. Retired soon thereafter.
Born October 25, 1867