The XI Corps served in the Army of the Potomac for just twelve months (September 1862-August 1863), during which it played a pivotal role in the critical battles of Chancellorsville and Gettysburg. Thereafter, the corps hastened westward to reinforce a Union army in besieged Chattanooga, and marched through brutal December weather without adequate clothing, shoes, or provisions to help rescue a second Northern army under siege in Knoxville, Tennessee. Despite its sacrifices in the Eastern campaigns and successes in Tennessee, the reputation of the XI Corps is one of cowardice and failure....
The XI Corps served in the Army of the Potomac for just twelve months (September 1862-August 1863), during which it played a pivotal role in the criti...