Well, considering that you've taken Bilbao, Madrid, Cartagena and Valencia, you've won according to the conditions. I know for a fact that I don't have the capacity to retake any of those. So if this is becoming too much of a slog, we can call it quits now if you like. Or you can punch holes in my lines 'til the bitter end.
If only for the sake of shortening the turn, I agree that the number of units should be decreased.
No news on the frontlines.