Naval | Doctrines Hearts of Iron IV Guide
Last update: 01 February 2017
Naval doctrines provide you with a different mechanic of actions that you undertake, than in the case of infantry. Doctrines here are strictly focused on development of various advantages of the fleet, depending on how you want to win your see domination. Maintaining control of a small portion of the ocean is a difficult task, and strong fleet requires lots of resources and many shipyards. IF, however, you decide in favor of this type of military actions, development of one of the below doctrines will make things much easier
Just like in the case of the remaining doctrines, you can use one tree only, at a time. 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.
Fleet in Being
In the case of this doctrine, you will be receiving most profits in connection with maintenance of liners. In the case of specific technologies, you will receive bonuses to detection and neutralization of various threats, which will make it much easier to control see basins. Conventionally for the doctrines, also level of organization of individual units has been raised, as well as bonuses that you receive from carrying out commands issued to individual types of ships. In the case of this doctrine, you deal with reinforcement of mass military actions and exhaustion warfare. Without special conditions and actions, you conduct warfare basing on devastating firepower and resistance of your units. Of course, submarines and aircraft carriers also receive bonuses, but they are not as high as ones for battleships.
This technology is a must-get for players who value power above anything else and who like dominating over the opponent n terms of firepower and numbers, It should be noted that building an appropriate fleet for this purpose may take a while. Therefore, you do not have to hurry when it comes to this variant.
Trade interdiction
Main bonuses in this doctrine are connected with submarines and lightweight ships. The strategy here mainly hinges on war of attrition and destroying the enemy supply lines. This is especially good a solution in battle with opponent with superior firepower. In such situation, a much better thing to do is to avoid combat altogether and to neutralize convoys and single units trying to perform reconnaissance or escort cargo ships.
This technology is especially interesting from the viewpoint of players familiar with naval warfare and want to mull over possible variants. Many countries transport their supplies between continents and organizing wolfpacks can considerably diminish enemy supplies. In such situations it is easy to orchestrate a raid on enemy territories.
Base attack
This one is the most versatile variant that provides reinforcement for support ships and aircraft carriers. After you develop this variant, you will slightly increase functioning of all of your units, thanks to which your actions will be more effective on all fronts. This one is especially good choice for those who do not focus on naval expansion, but who do not want to lag behind other nations and want to control, at least, basins along their coastlines. It should be noted that thanks to increased usefulness of aircraft carriers, you can attack all enemy bases and neutralize all means of landings and repairing ships.
This one is a good variant for those who rarely use the navy. or like locking the enemy in a restricted area and weaken him gradually. This type of actions make an excellent prelude for performing a landing on the weakened enemy. With destroyed naval bases, the weakened enemy ships have to yield the way and cover much longer distances to make up for their losses.