It’s March 1864 — Newly promoted Lieutenant General Ulysses S. Grant, commander of the newly formed United States Army, has decided to place his command in the field with the largest arm of the Union War Machine -- The Army of the Potomac. Still encamped outside Culpeper, Virginia, this 120,000-man force has been staring across the Rapidan River at their Confederate adversaries to the South all Winter. Within the next 8 weeks, Grant will launch this army South, directly into the teeth of General Robert E. Lee and the Army of Northern Virginia, and begin the bloodiest military campaign of the Civil War: The Overland Campaign.