Answer:
The Eastern Front was fought from the Baltic Sea in the north to the Black Sea in the south and took over large portions of Eastern Europe. On one side was the Central Powers of Germany and Austro-Hungary and on the other side was the Russian Empire.(WW1)
The Western Front was a military theatre of World War II encompassing Denmark, Norway, Luxembourg, Belgium, the Netherlands, the United Kingdom, France, Italy, and Germany.(WW2)