The American Civil War was primarily caused by the conflict over slavery, with federal forces aiming to preserve the union and end slavery.
The immediate cause of the American Civil War was the conflict over slavery and its role in society and the economy. The North aimed to abolish slavery, seeing it as inhumane, while the South viewed it as essential to their way of life. The war began when Confederate forces attacked Fort Sumter in 1861, escalating due to differing beliefs on slavery and states' rights.
On the other hand, the federal forces were fighting to achieve the preservation of the union and the end of slavery. President Lincoln initially focused on preserving the union, but as the war progressed, he embraced the abolition of slavery, which transformed the goals of the federal forces during the war. The Emancipation Proclamation and the North's victory marked significant milestones in achieving these objectives.
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