The Battle of Boonsboro took place on July 8, 1863, in Washington County, Maryland

Washington County, Maryland

Washington County is a county located in the western part of the U.S. state of Maryland, bordering southern Pennsylvania to the north, northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west. As of the 2010 Census, its population is 147,430...

, as part of the Retreat from Gettysburg

Retreat from Gettysburg

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...

 during the Gettysburg Campaign

Gettysburg Campaign

The Gettysburg Campaign was a series of battles fought in June and July 1863, during the American Civil War. After his victory in the Battle of Chancellorsville, Confederate General Robert E. Lee's Army of Northern Virginia moved north for offensive operations in Maryland and Pennsylvania. The...

 of the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

.

While Gen. Robert E. Lee

Robert E. Lee

Robert Edward Lee was a career military officer who is best known for having commanded the Confederate Army of Northern Virginia in the American Civil War....

's Army of Northern Virginia

Army of Northern Virginia

The Army of Northern Virginia was the primary military force of the Confederate States of America in the Eastern Theater of the American Civil War, as well as the primary command structure of the Department of Northern Virginia. It was most often arrayed against the Union Army of the Potomac...

 retreated toward Virginia

Virginia

The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

 following its defeat in the Battle of Gettysburg

Battle of Gettysburg

The Battle of Gettysburg , was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania. The battle with the largest number of casualties in the American Civil War, it is often described as the war's turning point. Union Maj. Gen. George Gordon Meade's Army of the Potomac...

, Confederate

Confederate States Army

The Confederate States Army was the army of the Confederate States of America while the Confederacy existed during the American Civil War. On February 8, 1861, delegates from the seven Deep South states which had already declared their secession from the United States of America adopted the...

 cavalry

Cavalry

Cavalry or horsemen were soldiers or warriors who fought mounted on horseback. Cavalry were historically the third oldest and the most mobile of the combat arms...

 held the South Mountain

South Mountain (Maryland and Pennsylvania)

South Mountain is the northern extension of the Blue Ridge Mountain range in Maryland and Pennsylvania. From the Potomac River near Knoxville, Maryland in the south, to Dillsburg, Pennsylvania in the north, the long range separates the Hagerstown and Cumberland valleys from the Piedmont regions of...

 passes. The cavalry fought a rearguard action against elements of the Union

Union Army

The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 1st and 3rd Cavalry Divisions and supporting infantry

Infantry

Infantrymen are soldiers who are specifically trained for the role of fighting on foot to engage the enemy face to face and have historically borne the brunt of the casualties of combat in wars. As the oldest branch of combat arms, they are the backbone of armies...

. This action was one of a series of successive cavalry engagements around Boonsboro

Boonsboro, Maryland

Boonsboro is a town in Washington County, Maryland, United States, located at the foot of South Mountain. It nearly borders Frederick County and is proximate to the Antietam National Battlefield...

, Hagerstown

Hagerstown, Maryland

Hagerstown is a city in northwestern Maryland, United States. It is the county seat of Washington County, and, by many definitions, the largest city in a region known as Western Maryland. The population of Hagerstown city proper at the 2010 census was 39,662, and the population of the...

, and Williamsport

Williamsport, Maryland

Williamsport is a town in Washington County, Maryland, United States. The population was 1,868 at the 2000 census and 2,278 as of July 2008.-Geography: Williamsport is located at ....

.

Battle

Confederate Maj. Gen. J.E.B. Stuart

J.E.B. Stuart

James Ewell Brown "Jeb" Stuart was a U.S. Army officer from Virginia and a Confederate States Army general during the American Civil War. He was known to his friends as "Jeb", from the initials of his given names. Stuart was a cavalry commander known for his mastery of reconnaissance and the use...

 faced a difficult assignment—locate the Union cavalry and prevent it from severing Gen. Lee's avenue of retreat to Williamsport and the Potomac River

Potomac River

The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...

. The result was the biggest and most sustained cavalry battle in Maryland during the campaign. The Battle of Boonsboro occurred along the National Road

National Road

The National Road or Cumberland Road was the first major improved highway in the United States to be built by the federal government. Construction began heading west in 1811 at Cumberland, Maryland, on the Potomac River. It crossed the Allegheny Mountains and southwestern Pennsylvania, reaching...

 on Wednesday, July 8, 1863.

Stuart, with five cavalry brigade

Brigade

A brigade is a major tactical military formation that is typically composed of two to five battalions, plus supporting elements depending on the era and nationality of a given army and could be perceived as an enlarged/reinforced regiment...

s, advanced from the direction of Funkstown and Williamsport. He first encountered Federal resistance at Beaver Creek Bridge, 4.5 miles north of Boonsboro. By 11 a.m., the Confederate cavalry had pushed forward to several mud-soaked fields, where fighting on horseback was nearly impossible, forcing Stuart's troopers and Brig. Gens.

Brigadier general (United States)

A brigadier general in the United States Army, Air Force, and Marine Corps, is a one-star general officer, with the pay grade of O-7. Brigadier general ranks above a colonel and below major general. Brigadier general is equivalent to the rank of rear admiral in the other uniformed...

 H. Judson Kilpatrick's and John Buford

John Buford

John Buford, Jr. was a Union cavalry officer during the American Civil War, with a prominent role at the start of the Battle of Gettysburg.-Early years:...

's Union cavalry divisions

Division (military)

A division is a large military unit or formation usually consisting of between 10,000 and 20,000 soldiers. In most armies, a division is composed of several regiments or brigades, and in turn several divisions typically make up a corps...

 to dismount and slug it out like infantry.

By mid-afternoon, the Union left under Kilpatrick crumbled as the Federals ran low on ammunition under increasing Confederate pressure. Stuart's advanced ended about 7 p.m., however, when Union infantry arrived—the first to engage on a Maryland battlefield since Gettysburg. Stuart withdrew north to Funkstown

Funkstown, Maryland

Funkstown is a town in Washington County, Maryland, United States. The population was 983 at the 2000 census.-History:Originally were sold to Henry Funk by Frederick Calvert in 1754 and settled as Jerusalem.Funck’s Jerusalem Town...

, but he had gained another day for Lee's retreating army. Two days later, he would again delay the Federal pursuit at the Battle of Funkstown

Battle of Funkstown

The Second Battle of Funkstown took place near Funkstown, Maryland, on July 10, 1863, during the Gettysburg Campaign of the American Civil War...

.