The manga is taken in fictional world war 2, as u can see from the above, this manga is more to tactical, I give a little spoiler, the crew tank use their wits and tactic very well during the war, even They able to beat a squad of Soviet Tank single handed with strategy and tactic, not somekind of crazy heroic fight that most people see at manga.where a lone wold destroy rampagingly. I quite enjoy this manga, sadly this one pretty extremly underrated, I want to reference othe rpeople review in this manga, but he spoiled most of the story. The other sad newsis, This manga is only has one volume