Best way to conquer France before U.K. interfers?

[vulcrum_26]

Hello, so im new to HOI4. Currently im playing as Italy, this time im going to play 'anti-germany' and won't join the Allies either. So i started the game by fast-winning in Ethiopia(i ended the ethiopian war in April '36) then justifying wargoal on Yugoslavia which is being guaranteed by France. After beating Yugoslavia, the war still raged on against France, and the problem is the war still continued until France joined Allies, so it's really hard fighting U.K. while they're having naval superiority and i need to fight them on Africa too. I know to avoid this is by conquering France before the alliance deal, but marching the troops through the italy-france border is hard because its on a mountain region (i think). So the option is by playing from behind and cut their supply lines, either by using naval invasion or paratroops, but here is the problem:

1. I can't using naval invasion because it said im not having naval superiority, even though i order my navy to patrol and strike-forcing the tyrrhenian and western mediteranian sea. My submarines also get destroyed by frances naval bomber. I can't leaning on producing more ships and fighter because the ammount of mil-factory isn't enough to (effectively) produce army and other branches equipment.

2. I can't paratroops-ing because of the special reenforcement cap, maybe i cant even train 10 paratroops division because my army wasn't big enough. But i cant deploy many regular troops too because the mil-factory isnt enough as i say and it takes too long to reach the capacity before the UK strikes

Maybe someone can help me?

Extra:
-Does Africa really worth to fighting for, or should i just let them invaded? Because i feel overwhelmed to fight in to different places.
-And how to suppress resistance?

 

[TalyonUngol]

Try joining Germany before Yugoslvia and move your navy to Germany. See if you can get supremacy up there. No need to call Germany in.

Another thing you can do is the southern most tile of your border with France is not a mountain. That's where you push. Maybe get a light tank division.

 

[Vin55]

Or you should get a decent naval invasion in marsaille. If you concentrate your whole navy plus subs and some air(conquer korsika) than you get naval supremecy, because your navy is bigger than the french one. When doing, push the mountain line as well. Holding africa means more french divison there being occupied (just leave some 10 with with 0 support, should hold out 2 per tile or so). You need 2 armies for southern France to push, maybe use some mot inf divisons or cav (if you dont have the mills) and push as fast as u can up and to the side, also joing axis means that their army will guard the maginot. If you leave France time halt the army will be in yungoslavia (convoy raid only in the sea tile there (once your invasion was a success), if you do it right you connect your armies and can push with 3 into France. If you delete your mountaineer units u could use paratroopers. But the problem will be the air probably, ai will have some planes and italy has a shit airforce at the start of the game.

 

[vulcrum_26]

If you leave France time halt the army will be in yungoslavia (convoy raid only in the sea tile there (once your invasion was a success)

Im sorry but i dont get what you said above.

And how about if i want to make a small New Roman Empire, should i join the axis? Also by you said "just leave some 10 with with 0 support, should hold out 2 per tile or so" did you mean the north africa (the libyan) or the ethiopian?

 

[Vin55]

what I meant is that the ai will send units into yugoslavia to defend them against you the agressor. So in the time it takes you to conquer corsica, just wait a little for the naval invasion and some french units will go there. I meant Lybia, I would normally release the east africans as puppets, it gives you more mills and manpower and the ai will station an army there (if england^^) and France at least one unit. You can join the axis, anytime you whant as fascist human player, so you join for that war, and later if you whant to do novus imperum you can leave before you go down to that focus. One thing I might ad is that you whant to take Austria out if you whant to furfill roman ambition saves you a lot of trouble later as germay does not get 6-7 million core manpower.