War isnt pretty but it is necessary if you want to keep your kingdom under your command and to do so you will have to lead your troops in these war games. If you are a simple soldier on the battlefield then it is your duty to help your fellow comrades and hopefully defeat the enemy. Search for their weak spots and make sure to attack them fast and hard. You will also need to show them that you are tough even when you are weak, or show them that you are weak when you are tough.
Always think one step ahead of your opponent much like in chess because the wars are won or lost at the strategy table and you will have to use all the tanks and fleet you have in order to prevail in these dark times where resources are scarce.