 Returning to his XII Corps brigade, Knipe went to the Western Theater and served in the Atlanta Campaign.He took command of a division of Union cavalry during John Bell Hood's incursion into Tennessee, and captured 6,000 Confederates and eight battleflags in a decisive victory over the retreating Army of Tennessee following the Battle of Nashville.Following the war, Knipe returned to Harrisburg, where he was appointed postmaster by President Andrew Johnson.