 The Phoenixville Iron Company by itself produced well over 1,000 cannons, and the Frankford Arsenal was a major supply depot.Pennsylvania was the site of the bloodiest battle of the war, the Battle of Gettysburg, 
which became widely known as the one of the turning points of the Civil War.Numerous smaller engagements and skirmishes were also fought in Pennsylvania during the 1863 Gettysburg Campaign, as well as the following year during a Confederate cavalry raid that culminated in the burning of much of Chambersburg, Pennsylvania.