The north doesn't grow cotton, but, it has a lot of industry. The south's use of cotton, (and their need of slaves), and their limited industry helped lead to the civil war and the south's defeat.
Somalia
To prevent them from exporting their plentiful cotton in exchange for much-needed war supplies.
The South and Britain had a cotton trade going at the time of the civil war. If Britain supported the North, the South would have cut of the supply of cotton to Britain. Britain though, actually was in favor of antislavery.
Cotton was King, and as long as the North could enforce its stranglehold on Southern exports the Confederate States were doomed.
not really
To reunite the states and get the cotton revenues back.
Slavery! The SOuthern States had the cotton industry that the North depended no.
The South was fighting to keep its independence - and retain the cotton revenues. The North was fighting to restore the Union - and regain the cotton revenues.
The North had a large complex railway system prior to the US Civil War and during it. The South being an agricultural economy relied on river transport to bring cotton and tobacco to their ports for exporting.
Although inter-sectional trading was strictly forbidden, there was a certain amount of unofficial exchange of Southern cotton for Northern munitions and medicine.
Well for one the south had slaves. The south grew cotton and tobacco which would die in the north. The North had more industrial buildings and more resources than the south.