Good idea, Ichabod! Happy Holidays.
This battle shouldn’t fail. If it did, something went horribly wrong in your Axis planning (see our other endless arguments about this in the archive)
If the Attack fails during Germany turn 1, did you notice that 6? UK/French planes can fly over and garrison Paris? So if France had any pieces left (usually 1 fighter) now they have like 7 Fighters plus 6-10 fodder! That makes the killing blow on G2 super-costly, but to the Allies as well. (to do this, UK left Italy ships alone, but they can’t help Paris anyways).
If they do this, Italy should still throw itself at Paris in order to soften the way for Germany 2 round.
Paris just buys 6 units and needs to get rid of its $$. It could have as many as 13+4 = 17 (10 “2s” and 7 “4s”), so Germany will need to lightsaber it the second round (with basically all its planes).
Really, as the Allies, I wouldn’t do this, you lose all your fighters. If the Axis blow the Paris take, your chances of winning just doubled. I’d just play the rest of the Allied game conservatively and win the slow game, knowing that Germany completely blew its initiative, money, timing, and cannon fodder attacking a minor power. Germany cannot possibly fail the second round (literally can bring like 40 units including all planes because you don’t want 7 fighters ripping you up in the retal). And when it wins, it wasted 2 full rounds going West, not East.