Answer:
Once Italy had joined in on the side of the Allies, the war became a three front war. The big Western front was in France, and Italian Front in the mountains of Italy, and the Eastern Front was on the border of Russia. Because Germany and Austria-Hungary had to split their armies, they were severely weakened.
Explanation:
Answer: France and Russia
Explanation: I'm not sure if thats what you mean but this is my answer
