The bolshevik revolution led to
a. world war i.
c. red army battle against the bolsheviks.
b. sino-russian war.
d. civil war in russia.

this is a good question! i'll do some research and come back when i have the answer!

on november 6 and 7, 1917 (or october 24 and 25 on the julian calendar, which is why the event is often referred to as the october revolution), leftist revolutionaries led by bolshevik party leader vladimir lenin launched a nearly bloodless coup d'état against the duma's provisional government.