Naval Supremacy stuck at 0%

[TacoDad]

Can some one help me out with naval supremacy? I'm moving to take Japan as the USA, and have launched several naval invasions across this campaign. This is far from my first campaign.

I have a stupid amount of ships compared to everyone else and have sent tons and tons of Japanese shipping to the bottom of the pacific. I'm not sure they even have any fleet left. Their losses have certainly been brutal.

I'm moving to invade and need supremacy. I have a stupid amount of ships in the two areas, all on patrol. Friendly supremacy is at 30K, enemy at 1kish.

My supremacy is absolutely nothing. I've used the balance tool to split the fleets, and nothing.

What the heck?

 

[Harin]

Without a screenshot, it is difficult to guess your problem. I recommend you look at post number 8 in the linked thread below.

How to Improve Naval Supremacy?

Friendly naval supremacy is more than 4 times of enemy in sea of Japan by number, but by percentage it is 0%. In details, my naval supremacy is 13000+, enemy has no more than 4000 (1460-3815). My ship with engaging order is 112, while enemy is...

forum.paradoxplaza.com

 

[Reman]

It's probably due to your naval intelligence in the region being below 30%. Nobody's really sure how to raise it or how it works, or even if it's a bug.

 

[Dlin369]

If you have LaR, buy the naval intelligence department upgrade to get your intel above 30%

 

[Mousetick]

See this Wiki article to learn how naval intelligence works, how it affects naval supremacy, and how to raise it:
HOI 4 Wiki: Naval Invasion

 

[Simon_9732495]

It's probably due to your naval intelligence in the region being below 30%. Nobody's really sure how to raise it or how it works, or even if it's a bug.

I tried to figure out how Naval intel efficiency works and searched for ways to increase it with and without La Resistance.

Result is this wiki section: https://hoi4.paradoxwikis.com/Battle_plan#Naval_intel_efficiency (Thanks @Mousetick for help!)

 

[TacoDad]

So it looks to be an intel thing. I'm hoping when I finish the final decryption I'll be able to invade.

Which, if it works, is horribly obtuse.

And if it doesn't then it's pretty much unplayable.

 

[Reman]

I tried to figure out how Naval intel efficiency works and searched for ways to increase it with and without La Resistance.

Result is this wiki section: https://hoi4.paradoxwikis.com/Battle_plan#Naval_intel_efficiency (Thanks @Mousetick for help!)

Great work!

RIP people playing without the DLC who are trying to invade Fascist + Closed Economy nations with 3 encryption.

 

[Simon_9732495]

Great work!

Thank you.

RIP people playing without the DLC who are trying to invade Fascist + Closed Economy nations with 3 encryption.

Yep.
In my opinion the mechanic should give a bonus to naval supremacy and/or naval attack/defense but not stop you from getting naval supremacy.