When Abraham Lincoln argued that the country was weakened by?

Abraham Lincoln argued that the country was weakened by the division between free and slave states, which threatened the nation’s unity and democratic ideals. He believed that this division undermined the principles of equality and liberty enshrined in the Declaration of Independence. Lincoln contended that the ongoing conflict over slavery not only jeopardized the stability of the Union but also hindered progress and moral development. Ultimately, he saw the resolution of this issue as crucial for the survival and integrity of the nation.