What were three beliefs of the Union?

The Union, during the American Civil War, was founded on several key beliefs: first, the preservation of the United States as a unified nation, opposing the secession of Southern states; second, the belief in equality and the moral imperative to end slavery, viewing it as a fundamental injustice; and third, a commitment to democracy and the rule of law, believing that a government of the people should not be dismantled by rebellion. These beliefs drove the Union's efforts throughout the war and shaped its post-war reconstruction policies.