The Battle of Bolshie Ozerki was a major engagement fought during the Allied North Russia Intervention in the Russian Civil War. Beginning on March 31, 1919, a force of British, American, Polish, and White Russian troops engaged several Red Army partisan regiments at the village of Bolshie Ozerki. Although the initial Allied attacks were repelled, the outnumbered Allies managed to repel the Soviet flanking attempts that followed and the Red Army was later ordered to withdraw. Allied forces began to withdraw rapidly from northern Russia shortly thereafter.