Answer:
Explanation:
There were a lot of factors -- most were not what Schlieffen expected.
1. France wasn't that easy to conquer. It took longer than Schlieffen thought.
2. Belgium did not respond the way Schlieffen expected. They fought Germany.
3. Russia was more flexible that Schlieffen thought. They mobilized quicker and were much more adept at using their forces.
4. In all, Schlieffen made plans that were inflexible and did not account for the way wars are actually fought.
For 5 points I think that is too little