Hello again comunity let's give other suggestion to Skulls&bones.
I was tinking when you have a good relation with a nation for an example Portugal and Portugal declares war to Spain you could diminish Spain's influencie by destroying it's forts and ships then when Spain's influence goes to 0 Portugal get's the full control and sometimes Spain will try to retake and you have to help defending the new Portugal territorie in open sea other wise it Will be taken.
I have another suggestion that i would like to know your opinion só if you don't mind to go to "suggestion" and give your opinion i would be tankfull.
Tank you for the apreciattion