946 Ch. 23 • Revolutionary Russia and the Soviet Union
legion of 50,000 Czechoslovak troops, which had surrendered earlier in
the war, operated as an anti-Bolshevik force along an extensive stretch of
territory into Siberia, holding the crucial trans-Siberian railway. The White
army played upon anti-Semitism by denouncing Trotsky and other Bolshe
vik leaders because they were Jews. A wave of pogroms spread through
Ukraine and parts of Russia. More than 2 million people fled abroad to
escape the Russian Revolution and the ensuing Civil War.