I swear on a bible that you're deficient in history.

The south seceded before Lincoln even took office. The south was supported by the Bank of England (Rothschild). Lincoln used the help of the Russian Navy to stop the flow of support from the British empire to the south. Lincoln realized that if the south were successful, the continued slavery coupled with the Bank of England would be disastrous for this country.
When the south was defeated, Lincoln was assassinated for his stalwart position, and the US bought Alaska for $7 million to thank Russia for their support.