Noob question on combat?

[Antmf]

Hey all, just got game and I dont understand the combat all that well. Now mind you I got it through Steam dont thing it came with manual Anyway I dont see Hitpoints or dont know how much life is left on people in my army or how much life is left on the enemy. Also what is the sense on having peasants and fairies they do little to no damage and die to quickly. Can someone enlighten me pleae on how to use the combat and how to level my mage up the best way? Thanks...