How did the russian revolution of 1917 affect world war i?
o
a. it produced a new communist government in russia that withdrew
from the war.
o
b. it led russia to rapidly industrialize in order to build enough
weapons to join the fighting.
o
c. it forced russia's czar to abandon the allies and swear allegiance
to the central powers.
o
d. it prevented russia's troops from defending its borders, allowing
germany to successfully invade.