Eastern theater of the American Civil War


The eastern theater of the American Civil War consisted of the major military and naval operations in the states of Virginia, West Virginia, Maryland, and Pennsylvania, the national capital in Washington, D.C., and the coastal fortifications and seaports of North Carolina. The interior of the Carolinas were considered part of the western theater, and other coastal areas along the Atlantic Ocean were part of the lower seaboard theater.
The eastern theater was the venue for several major campaigns launched by the Union Army of the Potomac to capture the Confederate capital of Richmond, Virginia; many of these were frustrated by the Army of Northern Virginia, a division of the Confederate States Army, commanded by General Robert E. Lee. President Abraham Lincoln responded by seeking a general to match Lee's boldness, and successively appointed Major General Irvin McDowell, George B. McClellan, John Pope, Ambrose Burnside, Joseph Hooker, and George G. Meade to command his principal eastern armies.
Meade gained a decisive victory over Lee at the Battle of Gettysburg in July 1863. Newly appointed general-in-chief Ulysses S. Grant arrived from the western theater the following year, in 1864, and took control of operations in Virginia. Under Grant, Union forces captured Richmond after several bloody battles of the Overland Campaign and a nine-month siege near the cities of Petersburg and Richmond. The surrender of Lee's army at Appomattox Court House in April 1865 brought major operations in the area to a close, essentially guaranteeing the Union's victory.
While many of the campaigns and battles were fought in the region of Virginia between Washington, D.C., and Richmond, there were other major campaigns fought nearby. The Western Virginia campaign of 1861 secured Union control over the western counties of Virginia, which would be formed into the new state of West Virginia. Confederate coastal areas and ports were seized in southeastern Virginia and North Carolina. The Shenandoah Valley was marked by frequent clashes in 1862, 1863, and 1864. Lee launched two unsuccessful invasions of Union territory in hopes of influencing Northern opinion to end the war.
In the fall of 1862, Lee followed his successful Northern Virginia campaign with his first invasion, the Maryland campaign, which culminated in his strategic defeat in the Battle of Antietam. In the summer of 1863, Lee's second invasion, the Gettysburg campaign, reached Pennsylvania, farther north than any other major Confederate army. Following a Confederate attack on Washington, D.C., in 1864, Union forces commanded by Philip H. Sheridan launched a campaign in Shenandoah Valley, which cost the Confederacy control over a major food supply for Lee's army.

Theater of operations

The eastern theater included the campaigns that are generally most famous in the history of the war, if not for their strategic significance, then for their proximity to the large population centers, major newspapers, and the capital cities of the opposing parties. The imaginations of both Northerners and Southerners were captured by the epic struggles between the Confederate Army of Northern Virginia, under Robert E. Lee, and the Union Army of the Potomac, under a series of less successful commanders. The bloodiest battle of the war and the bloodiest single day of the war were both fought in this theater. The capitals of Washington, D.C., and Richmond were both attacked or besieged. It has been argued that the western theater was more strategically important in defeating the Confederacy, but it is inconceivable that the civilian populations of both sides could have considered the war to be at an end without the resolution of Lee's surrender at Appomattox Courthouse in 1865.
The theater was bounded by the Appalachian Mountains to the west and the Atlantic Ocean to the east. By far, the majority of battles occurred in the 100 miles between the cities of Washington and Richmond. This terrain favored the Confederate defenders because a series of rivers ran primarily west to east, making them obstacles rather than avenues of approach and lines of communication for the Union invaders. This was quite different from the early years of the Western theater, and since the Union Army had to rely solely on the primitive road system of the era for its primary transportation, it limited winter campaigning for both sides. The Union advantage was control of the sea and major rivers, which would allow an army that stayed close to the ocean to be reinforced and supplied.
The campaign classification established by the United States National Park Service is more fine-grained than the one used in this article. Some minor NPS campaigns have been omitted and some have been combined into larger categories. Only a few of the 160 battles the NPS classifies for this theater are described. Boxed text in the right margin show the NPS campaigns associated with each section.

Principal Union commanders of the eastern theater

Principal Confederate commanders of the eastern theater

Early operations (1861)

After the fall of Fort Sumter in April 1861, both sides scrambled to create armies. President Abraham Lincoln issued a call for 75,000 volunteers to suppress the rebellion, which immediately caused the secession of four additional states, including Virginia. The United States Army had only around 16,000 men, with more than half spread out in the West. The army was commanded by the elderly Lt. Gen. Winfield Scott, veteran of the War of 1812 and the Mexican–American War. On the Confederate side, only a handful of Federal officers and men resigned and joined the Confederacy; the formation of the Confederate States Army was a matter initially undertaken by the individual states.
Some of the first hostilities occurred in western Virginia. Maj. Gen. George B. McClellan, commanding the Department of the Ohio, ordered troops to march from Grafton and attack the Confederates under Col. George A. Porterfield. The skirmish on June 3, 1861, known as the Battle of Philippi, or the "Philippi Races", was the first land battle of the Civil War. His victory at the Battle of Rich Mountain in July was instrumental in his promotion that fall to command the Army of the Potomac. As the campaign continued through a series of minor battles, General Robert E. Lee, who, despite his excellent reputation as a former U.S. Army colonel, had no combat command experience, gave a lackluster performance that earned him the derogatory nickname "Granny Lee". He was soon transferred to the Carolinas to construct fortifications. The Union victory in this campaign enabled the creation of the state of West Virginia in 1863.
The first significant battle of the war took place in eastern Virginia on June 10. Union Maj. Gen. Benjamin Butler, based at Fort Monroe, sent converging columns from Hampton and Newport News against advanced Confederate outposts. At the Battle of Big Bethel, near Fort Monroe, Colonel John B. Magruder won the first Confederate victory.

First Bull Run (First Manassas)

In early summer, the commander of Union field forces around Washington was Brig. Gen. Irvin McDowell, an inexperienced combat officer in command of volunteer soldiers with even less experience. Many of them had enlisted for only 90 days, a period soon to expire. McDowell was pressured by politicians and major newspapers in the North to take immediate action, exhorting him "On to Richmond!" His plan was to march with 35,000 men and attack the 20,000 Confederates under Brig. Gen. P.G.T. Beauregard at Manassas. The second major Confederate force in the area, 12,000 men under Gen. Joseph E. Johnston in the Shenandoah Valley, was to be held in place by Maj. Gen. Robert Patterson with 18,000 men menacing Harpers Ferry, preventing the two Confederate armies from combining against McDowell.
On July 21, McDowell's Army of Northeast Virginia executed a complex turning movement against Beauregard's Confederate Army of the Potomac, beginning the First Battle of Bull Run. Although the Union troops enjoyed an early advantage and drove the Confederate left flank back, the battle advantage turned that afternoon. Brig. Gen. Thomas J. Jackson inspired his Virginia brigade to withstand a strong Union attack, and he received his famous nickname, "Stonewall" Jackson. Timely reinforcements arrived by railroad from Johnston's army; Patterson had been ineffective in keeping them occupied. The inexperienced Union soldiers began to fall back, and it turned into a panicky retreat, with many running almost as far as Washington, D.C. Civilian and political observers, some of whom had treated the battle as festive entertainment, were caught up in the panic. The army returned safely to Washington; Beauregard's army was too tired and inexperienced to launch a pursuit. The Union defeat at First Bull Run shocked the North, and a new sense of grim determination swept the United States as military and civilians alike realized that they would need to invest significant money and manpower to win a protracted, bloody war.
George B. McClellan was summoned east in August to command the newly forming Army of the Potomac, which would become the principal army of the eastern theater. As a former railroad executive, he possessed outstanding organizational skills well-suited to the tasks of training and administration. He was also strongly ambitious, and by November 1, he had maneuvered around Winfield Scott and was named general-in-chief of all the Union armies, despite the embarrassing defeat of an expedition he sent up the Potomac River at the Battle of Ball's Bluff in October.

North Carolina coast (1861–65)

North Carolina was an important area to the Confederacy because of the vital seaport of Wilmington and because the Outer Banks were valuable bases for ships attempting to evade the Union blockade. Benjamin Butler sailed from Fort Monroe and captured the batteries at Hatteras Inlet in August 1861. In February 1862, Brig. Gen. Ambrose Burnside organized an amphibious expedition, also from Fort Monroe, that captured Roanoke Island, a little-known but important Union strategic victory. The Goldsborough Expedition in late 1862 marched briefly inland from the coast to destroy railroad tracks and bridges.
The remainder of operations on the North Carolina coast began in late 1864, with Benjamin Butler's and David D. Porter's failed attempt to capture Fort Fisher, which guarded the seaport of Wilmington. Union forces at the Second Battle of Fort Fisher, led by Alfred H. Terry, Adelbert Ames, and Porter, in January 1865, were successful in defeating Gen. Braxton Bragg, and Wilmington fell in February. During this period, the western theater armies of Maj. Gen. William T. Sherman were marching up the interior of the Carolinas, where they eventually forced the surrender of the largest remaining Confederate field army, under Joseph E. Johnston, on April 26, 1865.