Answer:
The Schlieffen Plan was a German war plan designed by General Alfred von Schlieffen. What did the Schlieffen Plan call for? It called for a quick attack on France through Belgium, attacking the French from behind.
The Union Army was larger, and was able to draw on a far larger population for replacements. The Union Army had better artillery, and was able to manufacture their own artillery. The Union's forces were made up of a far larger percentage of immigrants, and in general had good junior and mid-level officers, and a lot of rather mediocre top level officers
