The Enfield 1853 Rifle-Musket was used by both the North and the South in the American Civil War, and was the second most widely used infantry weapon in the war, surpassed only by the Springfield Model 1861 Rifled Musket. The Confederates imported more Enfields during the course of the war than any other small arm, buying from private contractors and gun runners when the British government refused to sell them arms after it became obvious that the Confederacy could not win the war. It has been estimated that over 900,000 P53 Enfields were imported to America and saw service in every major engagement from the Battle of Shiloh (April, 1862) and the Siege of Vicksburg (May 1863), to the final battles of 1865.