Army of the Potomac in the context of "Gettysburg campaign"

Fort George G. Meade is a United States Army installation located in Maryland, that includes the Defense Information School, the Defense Media Activity, the United States Army Field Band, and the headquarters of United States Cyber Command, the National Security Agency, the Defense Courier Service, Defense Information Systems Agency headquarters, and the U.S. Navy's Cryptologic Warfare Group Six. It is named for George G. Meade, a Union general from the American Civil War, who served as commander of the Army of the Potomac. The fort's smaller census-designated place includes support facilities such as schools, housing, and the offices of the Military Intelligence Civilian Excepted Career Program (MICECP).

The state of New Jersey in the United States provided a source of troops, equipment and leaders for the Union during the American Civil War. Though no major battles were fought in New Jersey, soldiers and volunteers from New Jersey played an important part in the war, including Philip Kearny and George B. McClellan, who led the Army of the Potomac early in the Civil War and unsuccessfully ran for President of the United States in 1864 against his former commander-in-chief, Abraham Lincoln.

George Gordon Meade (December 31, 1815 – November 6, 1872) was an American military officer who served in the United States Army and the Union army as a major general in command of the Army of the Potomac during the American Civil War from 1863 to 1865. He fought in many of the key battles of the eastern theater and defeated the Confederate Army of Northern Virginia led by General Robert E. Lee at the Battle of Gettysburg.

He was born in Cádiz, Spain, to a wealthy Philadelphia merchant family and graduated from the United States Military Academy in 1835. He fought in the Second Seminole War and the Mexican–American War. He served in the United States Army Corps of Topographical Engineers and directed construction of lighthouses in Florida and New Jersey from 1851 to 1856 and the United States Lake Survey from 1857 to 1861.

The Battle of Gettysburg (locally /ˈɡɛtɪsbɜːrɡ/ ) was a three-day battle in the American Civil War, which was fought between the Union and Confederate armies between July 1 and July 3, 1863, in and around Gettysburg, Pennsylvania. The battle, won by the Union, is widely considered the Civil War's turning point, leading to an ultimate victory of the Union and the preservation of the nation. The Battle of Gettysburg was the bloodiest battle of both the Civil War and of any battle in American military history, claiming over 50,000 combined casualties. Union Major General George Meade's Army of the Potomac defeated attacks by Confederate General Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North and forcing his retreat.

After his success in the Battle of Chancellorsville in Spotsylvania County, Virginia in May 1863, Lee led his Confederate forces through Shenandoah Valley to begin the Gettysburg campaign, his second attempt to invade the North. With Lee's army in high spirits, he intended to shift the focus of the summer campaign from war-ravaged Northern Virginia in the hopes of penetrating as far as Harrisburg or Philadelphia, which he hoped would convince northern politicians to end the war. President Abraham Lincoln initially prodded Major General Joseph Hooker into pursuing Lee, then relieved him of command just three days before the Battle of Gettysburg commenced, replacing him with Meade.

George Brinton McClellan (December 3, 1826 – October 29, 1885) was an American military officer, politician, and engineer who served as the 24th governor of New Jersey from 1878 to 1881 and as Commanding General of the United States Army from November 1861 to March 1862. He was also chief engineer and vice president of the Illinois Central Railroad, and later president of the Ohio and Mississippi Railroad in 1860.

A West Point graduate, McClellan served with distinction during the Mexican–American War. He was a railway executive and engineer until the outbreak of the American Civil War in 1861. Early in the conflict, McClellan was appointed to the rank of major general and played an important role in raising the Army of the Potomac, which served in the Eastern Theater.

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.

The Army of Northern Virginia was a field army of the Confederate States Army in the Eastern Theater of the American Civil War and one of the most storied military organizations in American history. It was also the primary command structure of the Department of Northern Virginia. It was most often arrayed against the Union's Army of the Potomac.

The Battle of Appomattox Court House, fought in Appomattox County, Virginia, on the morning of April 9, 1865, was one of the last, and ultimately one of the most consequential, battles of the American Civil War (1861–1865). It was the final engagement of Confederate General in Chief Robert E. Lee and his Army of Northern Virginia before they surrendered to the Union Army of the Potomac under the Commanding General of the United States Army, Ulysses S. Grant.

Lee, having abandoned the Confederate capital of Richmond, Virginia, after the nine-and-a-half-month Siege of Petersburg and Richmond, retreated west, hoping to join his army with Confederate forces, the Army of Tennessee in North Carolina. Union infantry and cavalry forces under General Philip Sheridan pursued and cut off the Confederates' retreat at the central Virginia village of Appomattox Court House. Lee launched a last-ditch attack to break through the Union forces to his front, assuming the Union force consisted entirely of lightly armed cavalry. When he realized that the cavalry was now backed up by two corps of federal infantry, he had no choice but to surrender with his further avenue of retreat and escape now cut off.

Philip Henry Sheridan (March 6, 1831 – August 5, 1888) was a career United States Army officer and a Union general in the American Civil War. His career was noted for his rapid rise to major general and his close association with General-in-chief Ulysses S. Grant, who transferred Sheridan from command of an infantry division in the Western Theater to lead the Cavalry Corps of the Army of the Potomac in the East. In 1864, he defeated Confederate forces under General Jubal Early in the Shenandoah Valley and his destruction of the economic infrastructure of the Valley, called "The Burning" by residents, was one of the first uses of scorched-earth tactics in the war. In 1865, his cavalry pursued Gen. Robert E. Lee and was instrumental in forcing his surrender at Appomattox Courthouse.

In his later years, Sheridan fought in the Indian Wars against Native American tribes of the Great Plains. He was instrumental in the development and protection of Yellowstone National Park, both as a soldier and a private citizen. In 1883, Sheridan was appointed general-in-chief of the U.S. Army, and in 1888 he was promoted to the rank of General of the Army during the term of President Grover Cleveland.