it was general grant
Ending the system of prisoner-exchange, so that the Confederates were bound to run out of men first.
There are several questions about the civil war. The main questions which historians have about the war however, is if it was inevitable.
Chattanooga
If you are talking about the American Civil War then the two key results were: The 13th and 14th amendments to the American Constitution. Look them up.
was the key general of the south during the civil war
vicksburg
Some key battles were..... The Attack on Fort Sumter which began the Civil War
Gettysburg destroyed Lee's ability to carry out an offensive in the North. Vicksburg choked off the South's ability to move troops and supplies on the Mississippi.
Lee served with distinction in the Mexican War between 1846 and 1848, and in the Civil War from 1861 to 1865.
Philip Sheridan was in the Civil War. He played a key role in the Battle of Perryville, the Battle of Cedar Creek, and the Third Winchester Battle. These were all battles fought in the period of the Civil War.
Making Grant the commander of the army.
Francis Scott Key