Answer:
To convince Americans that the war was worth continuing
Step-by-step explanation:
The Gettysburg Address was the speech delivered by Abraham Lincoln at the dedication ceremony for the national cemetery at Gettysburg. In his speech he recognized and honored the effort of the fallen soldier in the American Civil War ongoing.
His main purpose was to give American encouraging words to continue the war, he stated "It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced" and "....that we here highly resolve that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom, and that government of the people, by the people, for the people, shall not perish from the earth."