 Complete the following phrase:  The military history of the Soviet Union began in the days following the 1917 October Revolution that brought the Bolsheviks to power. In 1918 the new government formed the Red Army, which then defeated its various internal enemies in the Russian Civil War of 191722. The years 191821 saw defeats for the Red Army in the PolishSoviet War 191921 and in independence wars for Estonia 191820, 