These are used to train army troops faster so that they can level up and rise higher in ranks and can participate in different leagues and gameplay levels.
Troops will level up as they progress in the game, but the progression will be very slow and only a certain number of troops can be raised higher in ranks without the War Academies.
With War Academies, troops can level up faster and their performance on the battlefield will increase significantly adding to the competitive advantage over opponents. To participate in certain Leagues, the army troops will need to be on certain levels and ranks. War academies makes this process faster.
Players can also build their own War Academies if they are at certain levels and have certain number & types of resources. $LOE tokens will be needed to mint War Academies.