Final answer:
The Emancipation Proclamation changed the nature of the Civil War by making the abolition of slavery a key objective for the Union. While it did not immediately free all slaves, it provided hope and bolstered the Union's moral cause.
Step-by-step explanation:
The Emancipation Proclamation had a significant impact on the Civil War. It changed the nature of the war by making the abolition of slavery a key objective for the Union. The Proclamation declared that all slaves in Confederate-held territory were to be set free. However, it only applied to those states still in rebellion against the Union, and did not free all slaves in both the North and South.
There were several factors that led to the implementation of the Emancipation Proclamation. One factor was the military advantage it provided to the Union. By freeing the slaves, the Union army weakened the economic and labor force of the Confederacy. Additionally, the Proclamation was a diplomatic move, as it discouraged European nations, particularly Britain, from supporting the Confederacy.
Overall, the Emancipation Proclamation played a crucial role in transforming the Civil War into a war against slavery. It provided hope to enslaved African Americans and bolstered the Union's moral cause. However, it did not immediately free all slaves, as its implementation depended on Union military victories and the progress of the war itself.