Final answer:
Abraham Lincoln's leadership during the Civil War impacted American ideals by shifting the focus of the war to emancipation, freedom, and citizenship.
Step-by-step explanation:
Abraham Lincoln's leadership during the Civil War had a significant impact on American ideals. He believed that freeing the southern slaves would bring a speedy end to the war, as he saw slavery as a moral sin and believed it should not expand. Lincoln issued the Emancipation Proclamation, which declared that all slaves in Confederate territory were to be set free.
Lincoln's leadership during the war reinforced the American ideals of democracy and self-government. He believed that the people should have a say in their government, and his leadership emphasized the importance of these ideals in the face of a divisive war. While the Proclamation did not immediately free all slaves or end the war, it shifted the focus of the war to one about emancipation, freedom, and citizenship.