George B. McClellan finally mobilizes the Army of the Potomac to begin its grand offensive to destroy the Confederacy.
Exploring the most important 55 months in American history
George B. McClellan finally mobilizes the Army of the Potomac to begin its grand offensive to destroy the Confederacy.
Abraham Lincoln issues an executive order removing George B. McClellan as general-in-chief of all U.S. armies and creating new military departments that would report directly to the secretary of war.
George B. McClellan’s Federals finally enter northern Virginia, but the Confederate retreat from that area jeopardizes McClellan’s overall strategy.
Joseph E. Johnston issues orders to withdraw his Confederate army from its Manassas Junction-Centreville line southward to the Rappahannock River, almost halfway to the Confederate capital at Richmond.
Henry W. Halleck receives authorization to remove Ulysses S. Grant from command after Halleck alleged that Grant had neglected his duty.
George B. McClellan coordinates a Federal invasion of Virginia’s Shenandoah Valley, but unexpected complications thwart his plans.