Union forces under Ulysses Grant break the siege of Chattanooga, while Confederates under James Longstreet fail in their effort to capture Knoxville. In the east, the Army of the Potomac begins its short-lived Mine Run offensive.
President Abraham Lincoln dedicates the national cemetery at Gettysburg, Pennsylvania with his immortal Gettysburg Address, while the Confederate besiege Chattanooga and Knoxville, Tennessee.
The Siege of Chattanooga is broken.
General Grant moves men and material.