Answer:
Step-by-step explanation:
The Civil war was not only bloody, it developed a few strategies that were unknown before it.
For one thing, the rise of General Grant brought with him a war that was a war on civilians. A good movie to watch on this is the second half of "Gone with the Wind." This gives you an extremely graphic picture of how that war was fought and how it affected the south.
But that is not really your question. The cities in the North were where all the manufacturing took place. That's essentially what cities do. They make things. Rhett Butler (in Gone With the Wind near the beginning) makes a key observation when he says "The South will Loose. It does not make 1 cannon."
Though fiction and in a movie, that statement proved to be prophetic.
The south had better soldiers in the beginning and certainly better military leadership through out the war. Robert E Lee made do with a great deal less while facing a foe who had a great deal more. I'm not sure of my number so you might want to look it up, but I think the North went through 9 supreme commanders while the south used 1. Lee only made 1 mistake during the war, but it was a doozy. You should search out Gettysburg.
The south had a much better cavalry. That was due to the agricultural activity in Virginia and the Carolinas and Georgia.