Final answer:
Abraham Lincoln believed that slavery should be eliminated, as expressed in his Gettysburg Address and the issuance of the Emancipation Proclamation.
Step-by-step explanation:
Abraham Lincoln believed that slavery should be eliminated. In his famous Gettysburg Address, Lincoln stated that the Civil War was being fought to preserve the Union and ensure that 'government of the people, by the people, for the people, shall not perish from the earth.' This implied that all people should be treated equally, including the enslaved individuals. Lincoln's Emancipation Proclamation, issued in 1863, further demonstrated his commitment to ending slavery in the United States.
Learn more about Abraham Lincoln's view on slavery