In 1917 , communist revolutionaries over threw the russian government and established the soviet union . while they fought on the same side during world war 2 , the soviet union and western democracies like the united states became rivals in the mid 20th century this conflict became known as the cold war. which statement would best fit into this historical narrative ? a: some historians believe that russia was founded by vikings in 862 b: russian kings were called czars , a tittle based on the latin word caesar c: world war 2 resulted in the deaths of over 60 million people d: the cold war eneded with the fall of the soviet union in 1991