Pennsylvania 12th Cavalry (Union)

Second Bull Run

After the early summer collapse of the Union Peninsula Campaign offensive to capture Richmond, Robert E. Lee sought to move his army north and threaten Washington DC before Union forces could regroup.READ MORE

Antietam

The Army of the Potomac, under the command of Maj. Gen. George McClellan, mounted a series of powerful assaults against General Robert E. Lee's forces along Antietam Creek near Sharpsburg, Maryland, on September 17th, 1862.READ MORE

ColonelLewis B. Pierce

Monocacy

After marching north down the Shenandoah Valley from Lynchburg, the Confederate army of Lt. Gen. Jubal A. Early side-stepped the Federal garrison at Harpers Ferry and crossed the Potomac River at Shepherdstown into Maryland on July 5-6th, 1864. On July 9th, a makeshift Union force under Maj. Gen. Lew Wallace attempted to stop Early's invading Confederate divisions along the Monocacy River, just east of Frederick. The strategic area was near the junction of the Baltimore and Ohio Railroad and the Georgetown…READ MORE