In 1917, a smaller number of Latvian Riflemen, mostly officers, sided against the Bolsheviks. Officers such as Kārlis Goppers and Frīdrihs Briedis tried to prevent Bolshevik ideas from spreading among the Latvian soldiers. The bloody Christmas and January battles impeded their efforts to fight against Bolshevik ideology. Opponents of Bolshevism either left or were forced to leave military service or joined the White forces. During the last phase of the Civil War, two Latvian units were created in the Urals and Far East of Russia (Troitsk Battalion and Imanta Regiment), but they did not take part in significant military action and were sent to Latvia, by then already an independent nation.