Political map of North America & the Caribbean 09 April 1865 ( Surrender of Army of Northern Virginia): Having consolidated in Georgia, Sherman (William Tecumseh Sherman) turned north to invade the Carolinas and link up with Union forces in Virginia (Carolinas Campaign). Meanwhile the Union advances in the north (Third Battle of Petersburg) forced the Confederates (Confederate States of America) to flee Richmond. With his situation now untenable, Lee surrendered the Army of Northern Virginia at Appomattox Court House (Appomattox Campaign). Although it would take time for the news to spread, the Civil War was effectively at an end (Conclusion of the American Civil War).