The Battle of Fort Donelson: No Terms But Unconditional Surrender - Hardcoverby James R. Knight (Author), Douglas W. Bostick (Editor) In February 1862, after defeats at Bull Run and at Wilson's Creek in Missouri, the Union army was desperate for victory on the eve of its first offensive of the Civil War. The strategy was to penetrate the Southern heartland with support from a new Brown Water"? navy. In a two week campaign plagued by rising floodwaters and brutal winter weather, two armies collided in rural Tennessee to fight