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- Soviet Union -- Emigration and immigration[remove]13
- Soviet Union -- History -- Revolution, 1917-19216
- United States -- Emigration and immigration3
- Soviet Union -- History, Military2
- China -- Description and travel1
- Japan -- Emigration and immigration1
- Lithuania -- History1
- Poland -- History1
- Russia -- History -- To 15331
- Russia -- History, Military -- 1801-19171
- Siberia (R.S.R.S.R. and Kazakh S.S.R.) -- Description and travel -- 20th century1
- Soviet Union -- Foreign relations -- United States1