goals of forming a more perfect Union and abolishing slavery. From the outset of the Civil War, Lincoln's central purpose was to save the Union by defeating the South on the battlefield. No less important was his need to prevent a European intervention that would have facilitated the South's move for independence. Lincoln's goal of preserving the Union, however, soon evolved into an effort to form a more perfect Union, one that rested on the natural rights principles of the Declaration of Independence and thus necessitated emancipation.

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