World History

Not with German troops occupying most of Europe. The Allies would have paid any cost to free those countries.

And while winning a few battles may have helped the Confederacy convince the United States more quickly that the war wasn't worth continuing, all they really needed to do was make the cost to the United States too high and the progress to victory too slow in order to get the United States to propose peace. They never needed to win a complete military victory of the type the United States had to win, involving the forced surrender of a defeated army.

Germany's was a war of conquest and control. The Confederacy was fighting to be left alone, and had no need to conquer or control the United States. Two very different things.