Why were germany military leaders confident of a victory on the western front at the end of 1917

1. Germany had negotiated a peace with Russia and was no longer fighting in the east. 
2. the massacre of thousands of Armenians by the German army 
3. an overthrow of the Communist government in Russia 
4. Most German soldiers and military leaders wanted to surrender. 
5. the ruin or near ruin of many European economies 
6. a generous peace 
7. to make it impossible for Germany to wage war again 
8. a war reparations clause forcing all Central Powers to pay their enemies for damage 
9.The new nations of Austria, Hungary, and Czechoslovakia were created. 
10. They thought it was unjust and felt humiliated by the treaty's provisions. 
11. Americans were not interested in joining the League of Nations.

Where is the map ? u can attach it when asking a question btw