During the Chancellorsville Campaign, the 1st Battalion, 11th United States Infantry served in Colonel Sidney Burbank's 2nd Brigade, Major General George Sykes's 2nd Division, 5th Army Corps. Advancing eastward along the Orange Turnpike, Sykes's division opened the Battle of Chancellorsville here on the morning of May 1, 1863. The 11th United States Infantry advanced on the left of Sykes's line and drove Confederate skirmishers across Mott's Run to this ridgeline, taking 30 prisoners along the way. Here Confederate resistance stiffened, and the 11th Infantry engaged in a deadly firefight, returning volley for volley and steadfastly holding its ground against increasing odds. In the early afternoon, Sykes received orders to abandon the advance and return to Chancellorsville. The regiment lost 28 men in this engagement on May 1, 1863: 7 enlisted killed, 1 officer and 15 enlisted wounded, and 5 enlisted missing. In 1869, the 11th United States Infantry was redesignated the 16th Infantry Regiment, a designation it currently holds.