Ambrose Burnside (1824–1881) was a Union general in the Civil War. Born in Indiana and educated at West Point, Burnside served in the Mexican-American War before resigning from the Army. At the onset of the Civil War, he rejoined the Army and was appointed colonel of the First Rhode Island Volunteers. After the First Battle of Bull Run, Burnside was promoted to brigadier general and, later, to major general. He led forces in the Battle of Antietam but was ineffectual in his command. Despite his failings at Antietam, he was promoted again when Lincoln appointed him commander of the Army of the Potomac to replaced McClellan. He was defeated at Fredericksburg, Virginia, by Robert E. Lee in December 1862. Burnside was soon replaced by Joseph Hooker and sent to Ohio, where he orchestrated the capture Confederate general John Hunt Morgan and precipitated a political crisis when he suspended publication of the Chicago Times. In 1864, he served under Grant in the Wilderness campaign and led a disastrous effort at Petersburg, which led to his resignation in 1865. He later served as governor of Rhode Island and in the US Senate.

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