where is this place?
Vicksburg, Mississippi.
Vicksburg campaign
The Vicksburg campaign was a series of maneuvers and battles in the Western Theater of the American Civil War directed against Vicksburg, Mississippi, a fortress city that dominated the last Confederate-controlled section of the Mississippi River. 
what was the result of the battle of vicksburg The Confederates surrendered. when did the siege of vicksburg take place? 18 May to 4 July 1863. who was fighting against the confederates? The Union.
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Vicksburg campaign [SEP] Introduction
The Vicksburg campaign was a series of maneuvers and battles in the Western Theater of the American Civil War directed against Vicksburg, Mississippi, a fortress city that dominated the last Confederate-controlled section of the Mississippi River. The Union Army of the Tennessee under Maj. Gen. Ulysses S. Grant gained control of the river by capturing this stronghold and defeating Lt. Gen. John C. Pemberton's forces stationed there. The campaign consisted of many important naval operations, troop maneuvers, failed initiatives, and eleven distinct battles from December 26, 1862, to July 4, 1863. Military historians divide the campaign into two formal phases: operations against Vicksburg (December 1862 – January 1863) and Grant's operations against Vicksburg (March–July 1863).