Their defeat by McClellan at Antietam.
Antietam/Sharpsburg (Maryland)
After the Battle of Antietam in September of 1862, Lee's Army of Northern Virginia had to retreat from Maryland back to Virginia. Lee's evacuation from Maryland, for that moment of the war ended Confederate plans to take the war to the enemy, the Union.
Antietam
Antietam
McClellan forced Lee to retreat at Antietam.
Robert E. Lee was forced to retreat from the North due to his losses at the battles of Antietam and Gettysburg.
Their defeat by McClellan at Antietam.
Even though the battle was a tactical stalemate, Lee was forced to retreat, giving the North a strategic victory, allowing Lincoln to announce his Emancipation Proclamation.
Antietam/Sharpsburg (Maryland)
The significance of the Battle of Antietam is that the Union army forced the Confederate Army to retreat behind the Potomac River. See the related link for more information about the Battle of Antietam.
The Battle of Antietam was in Maryland in 1862. Robert E. Lee's army, the Army of Northern Virginia, took on heavy casualties. He had little choice but to retreat back to Virginia.
Lee lost and was forced to retreat back into Virginia.
After being defeated in both the Antietam and Gettysburg battles, Lee and his army retreated into Virginia.
After the Battle of Antietam in September of 1862, Lee's Army of Northern Virginia had to retreat from Maryland back to Virginia. Lee's evacuation from Maryland, for that moment of the war ended Confederate plans to take the war to the enemy, the Union.
although McClellan forced Lee to retreat it was essentialy a draw since he did not efficiently follow up the retreat by chasing Lee further back into the south
Although Lee's retreat from Antietam were cause for celebration in the North, the Republicans did suffer midterm losses in the election of 1862. Despite that, the Republicans maintained their majorities in the House and Senate.