First Battle of Bull Run

First Battle of Bull Run
Location: Fairfax County and Prince William County
Date: July 21, 1861
Principal Commanders: Brig. Gen. Irvin McDowell [US]; Brig. Gen. Joseph E. Johnston and Brig. Gen. P.G.T. Beauregard [CS]
Estimated Casualties: 4,700 total (US 2,950; CS 1,750)
Description: This was the first major land battle of the armies in Virginia. On July 16, 1861, the untried Union army under Brig. Gen. Irvin McDowell marched from Washington against the Confederate army, which was drawn up behind Bull Run beyond Centreville. On the 21st, McDowell crossed at Sudley Ford and attacked the Confederate left flank on Matthews Hill. Fighting raged throughout the day as Confederate forces were driven back to Henry Hill. Late in the afternoon, Confederate reinforcements (one brigade arriving by rail from the Shenandoah Valley) extended and broke the Union right flank. The Federal retreat rapidly deteriorated into a rout. Although victorious, Confederate forces were too disorganized to pursue. Confederate Gen. Bee and Col. Bartow were killed. Thomas J. Jackson earned the nom de guerre “Stonewall.” By July 22, the shattered Union army reached the safety of Washington. This battle convinced the Lincoln administration that the war would be a long and costly affair. McDowell was relieved of command of the Union army and replaced by Maj. Gen. George B. McClellan, who set about reorganizing and training the troops.
Result(s): Confederate victory

Vicksburg
Location: Warren County
Date(s): May 18-July 4, 1863
Principal Commanders: Maj. Gen. Ulysses S. Grant [US]; Lt. Gen. John C. Pemberton [CS]
Estimated Casualties: 19,233 total (US 10,142; CS 9,091)
Description: In May and June of 1863, Maj. Gen. Ulysses S. Grant’s armies converged on Vicksburg, investing the city and entrapping a Confederate army under Lt. Gen. John Pemberton. On July 4, Vicksburg surrendered after prolonged siege operations. This was the culmination of one of the most brilliant military campaigns of the war. With the loss of Pemberton’s army and this vital stronghold on the Mississippi, the Confederacy was effectively split in half. Grant's successes in the West boosted his reputation, leading ultimately to his appointment as General-in-Chief of the Union armies.
Result(s): Union victory

Gettysburg
Location: Adams County
Date(s): July 1-3, 1863
Principal Commanders: Maj. Gen. George G. Meade [US]; Gen. Robert E. Lee [CS]
Estimated Casualties: 51,000 total (US 23,000; CS 28,000)
Description: Gen. Robert E. Lee concentrated his full strength against Maj. Gen. George G. Meade’s Army of the Potomac at the crossroads county seat of Gettysburg. On July 1, Confederate forces converged on the town from west and north, driving Union defenders back through the streets to Cemetery Hill. During the night, reinforcements arrived for both sides. On July 2, Lee attempted to envelop the Federals, first striking the Union left flank at the Peach Orchard, Wheatfield, Devil’s Den, and the Round Tops with Longstreet’s and Hill’s divisions, and then attacking the Union right at Culp’s and East Cemetery Hills with Ewell’s divisions. By evening, the Federals retained Little Round Top and had repulsed most of Ewell’s men. During the morning of July 3, the Confederate infantry were driven from their last toe-hold on Culp’s Hill. In the afternoon, after a preliminary artillery bombardment, Lee attacked the Union center on Cemetery Ridge. The Pickett-Pettigrew assault (more popularly, Pickett’s Charge) momentarily pierced the Union line but was driven back with severe casualties. Stuart’s cavalry attempted to gain the Union rear but was repulsed. On July 4, Lee began withdrawing his army toward Williamsport on the Potomac River. His train of wounded stretched more than fourteen miles.
Result(s): Union victory

Cold Harbor
Location: Hanover County
Date(s): May 31-June 12, 1864
Principal Commanders: Lt. Gen. Ulysses S. Grant and Maj. Gen. George G. Meade [US]; Gen. Robert E. Lee [CS]
Estimated Casualties: 15,500 total (US 13,000; CS 2,500)
Description: On May 31, Sheridan’s cavalry seized the vital crossroads of Old Cold Harbor. Early on June 1, relying heavily on their new repeating carbines and shallow entrenchments, Sheridan’s troopers threw back an attack by Confederate infantry. Confederate reinforcements arrived from Richmond and from the Totopotomoy Creek lines. Late on June 1, the Union VI and XVIII Corps reached Cold Harbor and assaulted the Confederate works with some success. By June 2, both armies were on the field, forming on a seven-mile front that extended from Bethesda Church to the Chickahominy River. At dawn June 3, the II and XVIII Corps, followed later by the IX Corps, assaulted along the Bethesda Church-Cold Harbor line and were slaughtered at all points. Grant commented in his memoirs that this was the only attack he wished he had never ordered. The armies confronted each other on these lines until the night of June 12, when Grant again advanced by his left flank, marching to James River. On June 14, the II Corps was ferried across the river at Wilcox’s Landing by transports. On June 15, the rest of the army began crossing on a 2,200-foot long pontoon bridge at Weyanoke. Abandoning the well-defended approaches to Richmond, Grant sought to shift his army quickly south of the river to threaten Petersburg.
Result(s): Confederate victory