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The "Mud March" was an unsuccessful Union flanking maneuver during the American Civil War, occurring in January 1863. Following the devastating defeat at the Battle of Fredericksburg, Union General Ambrose Burnside attempted to move his Army of the Potomac to attack Confederate forces. However, heavy rains turned the terrain into an impassable mire, bogging down the troops and forcing the operation to be abandoned. This failure further lowered morale in the Army of the Potomac and led to Burnside's replacement by General Joseph Hooker.12

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