Abraham Lincoln was sixth president which was republican opposed the expanison of slavery.
We are so well supplied.
Ulysses S. Grant was one of the North's military leaders. Lead the battle of Shiloh in April 6-7 of 1862 which the union had won.
The Anaconda Plan was a Military Strategy for the North.
Why won't they grow?
A large population be advantageous to the North is because raising and army and supporting the war efforts. A large percentage of nation's factories be beneficial to the north because 90% of nations factories= Clothing, booth, weaponry.
Also Railroad Tracks= 72% of the nation's railroads.
The South has the ability to grow large amounts of rice and corn which is a disadvantage to the north