. . "CSA (Confederacy)" . "1,005 wounded," . . "30,720" . "United States(Union)" . "The Battle of Chickasaw Bayou, also called the Battle of Walnut Hills, fought December 26\u201329, 1862, was the opening engagement of the Vicksburg Campaign during the American Civil War. Confederate forces under Lt. Gen. John C. Pemberton repulsed an advance by Union Maj. Gen. William T."@en . . "13,792" . . "Confederatevictory" . . "1,776 (208 killed," . "Battle of Chickasaw Bayou"@en . "563 captured/missing)" . .