Sources on the history of foreign intervention in the Transbaikalia since 1918-1921

The main objective of the paper is to trace the history of forming a complex of written materials on the foreign military intervention in the Transbaikalia in the State Archives of the Republic of Buryatia (SARB), to show its structure and content. The main attention is focused on the question: how and why a great amount of archival material concerning military intervention are deposited in the funds of State Archives of the Republic of Buryatia, what techniques work is conducted on systematization and classification of these funds.