Proper noun
Transbaikal
A mountainous region to the east of Lake Baikal in Russia.
Synonym: Dauria
Buryats west of Lake Baikal and Olkhon (Irkut Buryats), are more "russified", and they soon abandoned nomadism for agriculture, whereas the eastern (Transbaikal) Buryats are closer to the Khalkha, may live in yurts and are mostly Buddhists. Source: Internet
Due to its favorable geographical position, it grew rapidly and became a large trade center which connected Russia with China and Mongolia and, from 1690, was the administrative center of the Transbaikal region. Source: Internet
The initial German attack destroyed many, and in the course of 1941 virtually all of them,(barring two in the Transbaikal Military District ). Source: Internet