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New York 20th Infantry (Union)

5/6/61

Organized - New York 20th Infantry - New York

8/28/61

Battle - Hatteras Inlet Batteries - Cape Hatteras, North Carolina

6/30/62

Battle - Glendale - Henrico County, Virginia

Glendale
Glendale

Following the rear guard action at Savage's Station on June 29th, Maj. Gen. George McClellan's Army of the Potomac continued its retreat toward the safety of Harrison's Landing on the James River. On June 30th, after five days of constant fighting, the Confederate divisions of Maj. Gens. Benjamin Huger, James Longstreet, and A.P. Hill converged on the retreating Union army in the vicinity of Glendale. Longstreet's and Hill's attacks penetrated the Union defense near Willis Church, routing Brig. Gen. George…READ MORE

6/30/62

Battle - White Oak Swamp - Henrico County, Virginia

7/1/62

Battle - Malvern Hill - Henrico County, Virginia

Malvern Hill
Malvern Hill

On June 30th, the retreating Federal Army of the Potomac finally stopped at the James River at the end of seven days of fighting outside of Richmond.READ MORE

8/28/62

Battle - Second Bull Run - Prince William County, Virginia

Second Bull Run
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

9/1/62

Battle - Chantilly - Fairfax County, Virginia

Chantilly
Chantilly

Confederate Maj. Gen. "Stonewall" Jackson hoped to cut off the Union retreat from Manassas the day after the Confederate victory at the second battle fought there. Jackson's wing of Lee's army made a wide, flanking march, screened by Maj. Gen. J.E.B. Stuart's cavalry, north and then east, to take the strategically important village of Germantown. There, Maj. Gen. John Pope's only two retreat routes to Washington - the Warrenton Pike and the Little River Turnpike - converged. On September 1st, beyond Chanti…READ MORE

9/14/62

Battle - South Mountain - Frederick County, Maryland; Washington County, Maryland; Boonsboro, Maryland

South Mountain
South Mountain

After his success at Second Manassas, Gen. Robert E. Lee led the Army of Northern Virginia north across the Potomac River on an invasion of Maryland in September of 1862. Lee divided his army, sending a portion of it into western Maryland while Lieut. Gen. Stonewall Jackson's wing attempted to capture the Federal garrison at Harper's Ferry. The bold plan was jeopardized on September 13th when a mislaid copy of Lee's orders revealing the Confederates' plans was given to Union commander Maj. Gen. George B. M…READ MORE

9/17/62

Battle - Antietam - Sharpsburg, Maryland

Antietam
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

12/13/62

Battle - Fredericksburg - Fredericksburg, Virginia

Fredericksburg
Fredericksburg

In early November, Maj. Gen. Ambrose E. Burnside took command of the Army of the Potomac, and made immediate plans to move the army once again toward Richmond.READ MORE

4/30/63

Leadership Change - Regiment - Colonel Ernst Von Vegesack

4/30/63

Leadership Change - Brigade - Brigadier General Thomas H. Neill

Brigadier GeneralThomas H. Neill

4/30/63

Leadership Change - Division - Brigadier General Albion P. Howe

Brigadier GeneralAlbion P. Howe

4/30/63

Leadership Change - Regiment - Colonel Ernst Von Vegesack

4/30/63

Battle - Chancellorsville - Spotsylvania County, Virginia

Chancellorsville
Chancellorsville

On April 27, 1863, Maj. Gen. Joseph Hooker launched a turning movement designed to pry Robert E. Lee's Army of Northern Virginia out of its lines at Fredericksburg.READ MORE

5/3/63

Battle - Salem Church - Spotsylvania County, Virginia

Salem Church
Salem Church

The Battle of Salem Church was part of Chancellorsville Campaign and was fought in Spotsylvania County, Virginia on May 4rd and 4th, 1863.READ MORE

5/3/63

Battle - Second Fredericksburg - Fredericksburg, Virginia

6/1/63

Mustered Out - New York 20th Infantry - New York

7/1/63

Battle - Gettysburg - Gettysburg, Pennsylvania

Gettysburg
Gettysburg

In the summer of 1863, Confederate Gen. Robert E. Lee launched his second invasion of the Northern states. Lee sought to capitalize on recent Confederate victories and defeat the Union army on Northern soil, which he hoped would force the Lincoln administration to negotiate for peace. Lee also sought to take the war out of the ravaged Virginia farmland and gather supplies for his Army of Northern Virginia. Using the Shenandoah Valley as cover for his army, Lee was pursued first by Union Maj. Gen. Joseph Ho…READ MORE

11/27/63

Battle - Mine Run - Orange County, Virginia

Mine Run
Mine Run

After the inconclusive Bristoe Campaign in the fall of 1863, Maj. Gen. George G. Meade planned one more offensive against Gen. Robert E. Lee in northern Virginia before winter weather ended military operations. In late November, Meade attempted to steal a march southeast from Culpeper Courthouse, turn south through the Wilderness and strike the right flank of the Confederate army south of the Rapidan River. On November 27th, Maj. Gen. Jubal A. Early, in command of Ewell's Corps, marched east on the Orange…READ MORE

5/5/64

Battle - Wilderness - Spotsylvania County, Virginia; Orange County, Virginia

Wilderness
Wilderness

The first battle between Lt. Gen. Ulysses S. Grant and Gen. Robert E. Lee erupted late in the morning of May 5, 1864, as Maj. Gen. Gouverneur K. Warren's Union V Corps attacked Lt. Gen. Richard S. Ewell's Second Corps on the Orange Turnpike southwest of the old Chancellorsville battlefield. Although Federal infantry managed to break through at several points, the Confederate line held. Fighting shifted to the south as Lt. Gen. A.P. Hill's Third Corps engaged Maj. Gen. Winfield S. Hancock's II Corps and ele…READ MORE

5/8/64

Battle - Spotsylvania Court House - Spotsylvania County, Virginia

Spotsylvania Court House
Spotsylvania Court House

Following the Battle of the Wilderness, Lieut. Gen. Ulysses S. Grant marched the Union army south with the hope of capturing Spotsylvania Court House and preventing Robert E. Lee's army from retreating further. Lee's Confederates, however, managed to get ahead of the Federals and block the road. Fighting began on May 8th, when the Union Fifth Corps under Maj. Gen. Gouverneur K. Warren and the Sixth Corps under Maj. Gen. John Sedgwick engaged Confederate Maj. Gen. Richard Anderson's First Corps at Laurel Hi…READ MORE

5/23/64

Battle - North Anna - Caroline County, Virginia; Hanover County, Virginia

North Anna
North Anna

Following the stalemate at Spotsylvania Court House, Grant was determined to continue his offensive against Lee's Army of Northern Virginia. After a failed attempt to bait Lee out of his earthworks, he found the Confederates entrenched on the south side of the North Anna River, where Lee's "inverted V" defenses forced Grant to divide his army into three parts in order to attack. On May 23rd, one of Maj. Gen. A.P. Hill's divisions assaulted the isolated Fifth Corps on the Union right which had crossed the r…READ MORE

5/28/64

Battle - Totopotomoy Creek - Hanover County, Virginia

Totopotomoy Creek
Totopotomoy Creek

Operations along Totopotomoy Creek northeast of Richmond opened with cavalry combat at the Pamunkey River crossing at Dabney's Ferry (near Hanovertown) and at Crump's Creek on May 27th. During the cavalry fight at Haw's Shop on May 28th, Union and Confederate infantry arrived in the vicinity and the Confederates entrenched behind Totopotomoy Creek. On the 29th, the Union army Second, Ninth, and Fifth Corps probed Lee's position along the creek, while the Sixth Corps felt its way toward Hanover Court House.…READ MORE

5/31/64

Battle - Cold Harbor - Hanover County; near Mechanicsville, Virginia

Cold Harbor
Cold Harbor

After two days of inconclusive fighting along Totopotomoy Creek northeast of Richmond, Lt. Gen. Ulysses S. Grant and Gen. Robert E. Lee turned their sights on the crossroads of Cold Harbor. Roads emanating through this critical junction led to Richmond as well as supply and reinforcement sources for the Union army. On May 31, 1864, Maj. Gen. Philip Sheridan's cavalry captured Cold Harbor. The next day, Sheridan held the crossroads against a Confederate attack. With reinforcements from both armies arriving…READ MORE

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