Thanks for all your advice. :-)
I tried to adpot Husserls tactics and it works ok the first half of the battle, but in the end the South army just has too many units with many stars. I just can not manage to hold the line. I try to regroup but I can find time enough to setup a new line and even if I did is seems as a Mount Everest to climd to take back the lost VPs.
I tried five times now after getting your advise. In total maybe 20 times. Time to give up. :-)