The party that "would make war" is the Confederacy. The party that "would accept war" is the Union. The tone of Lincoln's second inaugural address is subdued and weary. He states that the war has gone longer than it should. In this sentence he assigns both parties a responsibility for the war that has divided the nation.
The correct form would be "covers"
Paul Laurence departed from tradition poetry in "we wear the mask" because in 1997 a man named "Orlando leift" had his English men come rescue Paul Laurence in the poetry called "we wear the mask".
To entertain his audience with a patriotic story, is your answer