Democracy originated in Ancient Greece
Answer:
The empire had become too unwieldy to rule by a single emperor. ... The split of the empire allowed the eastern half of the empire to endure for 1000 more years, in part because this region was already more prosperous and better held together. The borders on the Western Empire were far more porous than those on the East.
Explanation:
Two nations that fought on the side of Russia and Serbia in WWII were France and Britain.
<h3>Which nations fought on the side of Russia and Serbia?</h3>
The French were allied to Russia so when war broke out and saw Russia and Serbia fighting against Germany and Austria-Hungary, France joined the Russians and Serbians.
Britain was allied with France and so joined the war on the side of the French.
Find out more on World War I at brainly.com/question/14345035.