It’s a symbols of the struggle for abolition and emancipation
The declaration suggest that the whole purpose of government is to secure the people's rights and that government gets its power from "the consent of the governed." If that consent is betrayed, then "it is the right of the people to alter or abolish" their government.
Are there any answer choices?
create a heroic out look on the war, and encurage more men to fight in the war.