Answer:
The Russian Revolution of 1917 spelled the end to that country's participation in World War I .
Explanation:
The Russian Revolution, ocurred in November 1917 among the widest territory that Russia and its metropolis gathered millions.
The terrible impopularity of Nicolas II that exerted tyranical rule and lived in awful richness while the majority of the people was dying and perished without the minimum resources to live contributed to the collapse of the country and the outbreak of the revolution.
The involvement in the World war just made things worsen, since the cost of the war was carried on the shoulders of the people of Russia.
The last Tsar and his family were shot to dead and the Communist party turned the country into a new regime under Socialist rule
The legacy of the Russian Revolution went abroad and the Soviet Union formally ended in 1991 .
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