Yes he wanted to draw The Army of the Potomac out of Virginia. But he also wanted to destroy the Rockville railroad bridge over which went most of the supplies for the Union Army in the west, take Harrisburg and threaten Philadelphia if the opportunity arose.
Harrisburg was a significant training center for the
Union Army, with tens of thousands of troops passing through Camp Curtin. It was also a major rail center and a vital link between the
Atlantic coast and
the Midwest, with several railroads running through the city and over the
Susquehanna River. As a result of this importance, it was a target of Robert E. Lee's
Army of Northern Virginia during its two invasions. The first time during the 1862
Maryland Campaign, when Lee planned to capture the city after taking
Harpers Ferry, West Virginia, but was prevented from doing so by the
Battle of Antietam and his subsequent retreat back into Virginia.
The second attempt was made during the Gettysburg Campaign and was more substantial. Two full divisions of Richard S. Ewell's Second Corps approached Harrisburg in June 1863 from the southwest through
Cumberland County, while a third division under
Jubal Early planned to cross the Susquehanna River at
Wrightsville, Pennsylvania, and attack Harrisburg from the rear. In response,
Union Maj. Gen. Darius N. Couch, commanding the
Department of the Susquehanna, dispatched troops to the present day borough of
Camp Hill, located in the Cumberland Valley approximately two miles west of Harrisburg. Laborers hired by Couch quickly erected earthworks and fortifications along the western portion of
Bridgeport, adjacent to Camp Hill. The two largest of these became known as "Fort Couch" and "Fort Washington."
On June 29, two Confederate
cavalry companies attacked Union
militia positions around Oyster Point, but were driven back with two wounded. This allowed officers from Ewell's staff to get a view of Harrisburg's fortifications from what is today the Drexel Hills development of New Cumberland. Based on their information, Ewell prepared for an attack but that same day Lee ordered Ewell to pull back. Lee had recently discovered that the Union
Army of the Potomac was closer than he thought and desired to concentrate his forces near the
South Mountain range to parry oncoming Union forces, a move that culminated in the
Battle of Gettysburg.
Ewell left two cavalry units behind at a place known as Sporting Hill, on the west side of Camp Hill. Brigadier General
William F. Smith, commanding the 1st Division of the
Department of the Susquehanna, sent two militia infantry regiments and a cavalry company to locate the Confederates. The two forces collided the next day, fighting a short skirmish at
Sporting Hill before the Confederates withdrew. This is considered by many to be the northern-most battle of the Civil War.