How did Abraham Lincoln's goals for the war change over time?

At the outset of the American Civil War, President Abraham Lincoln’s primary objective was the preservation of the Union. He was initially willing to allow slavery to continue if it meant maintaining the nation's integrity, and he sought to avoid actions that might alienate the slave-holding border states.123

As the conflict progressed, Lincoln’s goals evolved to include the abolition of slavery as a nonnegotiable objective. This shift was driven by his long-standing personal abhorrence of the practice, the growing antislavery sentiment in the North, and the realization that slavery was a critical source of labor for the Confederacy.13

The issuance of the Emancipation Proclamation in 1863 marked a definitive turning point, transforming the war into a struggle for both reunion and human freedom. By the latter stages of the war, Lincoln remained steadfast that peace could only be achieved through the restoration of the Union and the permanent abandonment of slavery, ultimately viewing the conflict as a necessary test to ensure that a nation dedicated to liberty and equality would not perish.32145