
The Battle of Aldie took place on June 17, 1863, in Loudoun County, Virginia, as part of the Gettysburg Campaign of the American Civil War.

The Battle of Boonsboro took place on July 8, 1863, in Washington County, Maryland, as part of the Retreat from Gettysburg during the Gettysburg Campaign of the American Civil War.

The Battle of Brandy Station, also called the Battle of Fleetwood Hill, was the largest predominantly cavalry engagement of the American Civil War, as well as the largest ever to take place on American soil. It was fought on June 9, 1863, around Brandy Station, Virginia, at the beginning of the Gettysburg Campaign by the Union cavalry under Maj. Gen. Alfred Pleasonton against Maj. Gen. J.E.B. Stuart's Confederate cavalry.

The Battle of Fairfax Court House was fought during the Gettysburg Campaign of the American Civil War between two cavalry detachments from the Union Army of the Potomac, commanded by General Joseph Hooker, and the Confederate Army of Northern Virginia, commanded by General Robert E. Lee.

The Second Battle of Funkstown took place near Funkstown, Maryland, on July 10, 1863, during the Gettysburg Campaign of the American Civil War. Union forces of the Army of the Potomac attacked the rear guard of the Confederate Army of Northern Virginia during its retreat from Pennsylvania following the Battle of Gettysburg.

The Battle of Gettysburg was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point due to the Union's decisive victory and concurrence with the Siege of Vicksburg. Union Maj. Gen. George Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North.

The Battle of Hanover took place on June 30, 1863, in Hanover in southwestern York County, Pennsylvania, as part of the Gettysburg Campaign of the American Civil War.

The Battle of Middleburg took place from June 17 to June 19, 1863, in Loudoun County, Virginia, as part of the Gettysburg Campaign of the American Civil War.

The Fight at Monterey Pass was an American Civil War military engagement beginning the evening of July 4, 1863, during the Retreat from Gettysburg. A Confederate wagon train of Lt. Gen. Richard S. Ewell's Second Corps, Army of Northern Virginia, withdrew after the Battle of Gettysburg, and Union cavalry under Brig. Gen. H. Judson Kilpatrick attacked the retreating Confederate column. After a lengthy delay in which a small detachment of Maryland cavalrymen delayed Kilpatrick's division, the Union cavalrymen captured numerous Confederate prisoners and destroyed hundreds of wagons.

The Confederate Army of Northern Virginia began its Retreat from Gettysburg on July 4, 1863. Following General Robert E. Lee's failure to defeat the Union Army at the Battle of Gettysburg, he ordered a retreat through Maryland and over the Potomac River to relative safety in Virginia. The Union Army of the Potomac, commanded by Maj. Gen. George G. Meade, was unable to maneuver quickly enough to launch a significant attack on the Confederates, who crossed the river on the night of July 13 into South Mountain through Cashtown in a wagon train that extended for 15–20 miles, enduring harsh weather, treacherous roads, and enemy cavalry raids. The bulk of Lee's infantry departed through Fairfield and through the Monterey Pass toward Hagerstown, Maryland. Reaching the Potomac, they found that rising waters and destroyed pontoon bridges prevented their immediate crossing. Erecting substantial defensive works, they awaited the arrival of the Union army, which had been pursuing over longer roads more to the south of Lee's route. Before Meade could perform adequate reconnaissance and attack the Confederate fortifications, Lee's army escaped across fords and a hastily rebuilt bridge.

The Battle of Upperville took place in Loudoun County, Virginia on June 21, 1863 during the Gettysburg Campaign of the American Civil War.

The Battle of Williamsport, also known as the Battle of Hagerstown or Falling Waters, took place from July 6 to July 16, 1863, in Washington County, Maryland, as part of the Gettysburg Campaign of the American Civil War. It is not to be confused with the fighting at Hoke's Run which was also known as the Battle of Falling Waters.

The Second Battle of Winchester was fought between June 13 and June 15, 1863 in Frederick County and Winchester, Virginia as part of the Gettysburg Campaign during the American Civil War. As Confederate Lieutenant General Richard S. Ewell moved down the Shenandoah Valley in the direction of Pennsylvania, his corps defeated the Union Army garrison commanded by Major General Robert H. Milroy, capturing Winchester and numerous Union prisoners.