How did the russian revolution impact world war l ?

because they deafeted the Germans all together with the allies

The Russian Revolution had the effect of putting an end to the major arena of fighting on the Eastern Front in World War I. It temporarily helped the Germans by freeing up troops, but this advantage did not do the Germans much good. ... In 1918, the Bolsheviks concluded the Treaty of Brest-Litovsk with the Germans.

answer; depression and breathing related sleep disorder(independent);

answer; health-related quality of life;