In the case of this doctrine, you will be receiving most profits in connection with maintenance of liners. What is important here, is that in the case of the navy, there are no doctrines that would exclude each other, so you can fully develop the variant that you pick. Just like in the case of the remaining doctrines, you can use one tree only, at a time. IF, however, you decide in favor of this type of military actions, development of one of the below doctrines will make things much easier. Maintaining control of a small portion of the ocean is a difficult task, and strong fleet requires lots of resources and many shipyards.
Doctrines here are strictly focused on development of various advantages of the fleet, depending on how you want to win your see domination.
Naval doctrines provide you with a different mechanic of actions that you undertake, than in the case of infantry.
