Title "Grand Review of the Union Army" The "Grand Review of the Army" was a significant event that took place in Washington, D.C., during the U.S. Civil War. On May 23, 1865, following the Confederate surrender at Appomattox Court House, President Abraham Lincoln reviewed the Union Army, which had played a crucial role in the war's outcome. The event was marked by soldiers marching in wagons and on horses through the city streets, showcasing their military prowess. This grand spectacle served as a symbol of victory, national unity, and the end of a prolonged period of internal conflict for the United States.