War opt-in status indicate on main screen
Getting people to correctly update their war status is sometimes a little difficult. They forget. And new players don't even know how to do it. But it is important, it is even something that gets them kicked if they get it wrong.
It would be better if the players war status were displayed to them by color coding the crossed sword on the war icon on the main screen. Also, when touching the crossed swords war icon, on the war screen you should immediately see you opt status and be able to change it there and then. Having to go to profile and wars to do it, where there is nothing else to do, is to have buried the switch in a silly place and created a useless tree for that sole purpose.