Lasting from April 12th 1861 - November 25th 1868 (Official End with the Signing Treaty of Oslo in February 12th 1869), Gettysburg among the largest battles ended in a stalemate, while Beauregard launches a sneak attack up the Potomac. After the battle of Baltimore and the Siege of Washington, Britain and France join the war, Lincoln promises Russia the Oregon Territory. This creates a cascade of alliances and wars, many of them are unrelated with the American Civil War. Eventually the ACSA is defeated by the AU.