Who replaced General Burnside after battle of fredericksburg?

After the Battle of Fredericksburg, General Ambrose Burnside was replaced by General Joseph Hooker as the commander of the Army of the Potomac. This change occurred in January 1863, following the Union's defeat at Fredericksburg, which had led to significant criticism of Burnside's leadership. Hooker took command with the goal of revitalizing the Union army's efforts in the Civil War.