After his victory of the union in Virginia, he decided to take the fight to Maryland because it was a slave holding state.
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The u.s new an attack was coming but they didn't know when, as a result they were unprepared and lost a lot of their stuff
Robert Edward Lee (January 19, 1807 – October 12, 1870) was an American Confederate general best known as a commander of the Confederate States Army during the American Civil War. He commanded the Army of Northern Virginia from 1862 until its surrender in 1865 and earned a reputation as a skilled tactician.
Black codes were adopted because the intent and effect of limiting African Americans’ freedom and compelling them to work in labor economy that was based on wages and debt.