Which territory did Roman von Ungern-Sternberg's forces and the Transbaikal fight over?
36th Rifle Division (Soviet Union) The division was first formed as the 36th Rifle Division (ru: 36-я стрелковая дивизия) based on the 9th Army's expeditionary division on 19 July 1919. It fought in the Russian Civil War and was part of the 9th Army between 1919 and 1920. In summer 1921, the division participated in the campaign against Roman von Ungern-Sternberg's forces in Mongolia. On 4 June 1923, the division was given the honorary designation "Transbaikal".
Siberia Siberia ( ; Russian: Сиби́рь , "Sibir'"; ] ) is an extensive geographical region, and by the broadest definition is also known as North Asia. Siberia has historically been a part of Russia since the 17th century.