A fight is in progress at Fort Donaldson on the Cumberland river. It will no doubt be a desparate one. The number in the Fort is not certainly known, certainly not less than 15,000 and maybe more than twice that number. Buckner, Johnson, Floyd and Pillow, rebel generals are said to be there. The attack was made by Gen. Grant yesterday, aided by Commodore Foote's gunboats.
This battle for Fort Donelson was a victory for the Union and in particular for "Unconditional Surrender" Grant who refused to grant any terms of surrender to the opposing forces.
Here's a link to a map of the campaign.