At Fredericksburg, Major General Ambrose E. Burnside commanded the Army of the Potomac. The Confederate Army of Northern Virginia was led by Robert E. Lee.
Meade for the Union. Lee for the Confederates.
This question is miscategorized. Marye's Heights was at Fredricksburg not Antietam.
Fredricksburg and Chancellorsville - 1862 and 1863.
Grant for the Union - launching a major attack on the Confederates under Robert E. Lee.
In the first battle at Bull Run (1861), gen. McDowell for the Union and gen. "Stonewall" Jackson for the Confederates. In the second battle at Bull Run (1862), gen. Pope for the Union and again gen. 'Stonewall' Jackson for the Confederates.
Ambrose Burnside
Confederates: General Robert E. Lee, General Thomas "Stonewall" Jackson, and a more minor general, General Stuart. Union: General Ambrose Burnside, General Sumner.
Burnside led the Union troops.
The commanders for the Confederates were General Joseph E. Johnston and Brigadier General Pierre Beauregard at First Bull Run. The Union army was commanded by Brigadier General Irvin McDowell.
Ambrose Burnside
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Ambrose Burnside