Lead: One hundred and fifty years ago the Republic was facing its greatest crisis. This continuing series examines the American Civil War. It is "A House Divided."

Intro.: A Moment in Time with Dan Roberts.

Content: President Lincoln would say it later but he understood a fundamental fact as spring turned to summer 1864. “Upon the progress of our arms, all else chiefly depends.” His re-election, emancipation and the restoration of the Union would not at any point be achieved by negotiation. In his message to Congress outlining discussions with Jefferson Davis that lamentable summer, he wrote that “Davis does not attempt to deceive us. He cannot voluntarily reaccept the Union, we cannot voluntarily yield it. Between him and us the issue is distinct, simple and inflexible. It is an issue which can only be tried by war, and decided by victory.