(A) Gettysburg
(B) ** Antietam
(C) Boston
(D) Bull Run
EXPLANATIONS BELOW
Concept note-1: -Hoping to take advantage of the Union’s low morale and seeming ineptitude, Lee chose to push his army north across the Potomac and into Maryland where they soon occupied the town of Frederick.
Concept note-2: -Robert E. Lee’s Army of Northern Virginia, ending Lee’s attempt to invade the North. After his success at Chancellorsville in Virginia in May 1863, Lee led his army through the Shenandoah Valley to begin his second invasion of the North-the Gettysburg Campaign.
Concept note-3: -The Maryland campaign (or Antietam campaign) occurred September 4–20, 1862, during the American Civil War. Confederate Gen. Robert E. Lee’s first invasion of the North was repulsed by the Army of the Potomac under Maj. Gen.