I came across the album "Gesundrian" by Diocletian while browsing the Season of Mist store. It's pretty powerful metal, and it describes a lot of war in its lyrics (which are written very well, in my opinion). I find it appropriate to categorize it as Battle Metal or War Metal, and I'm getting into them a lot more.
Also, I decided to post this hear rather than in the album review section because I would want to give this album a few more close listens before I review it. I consider this as more of a recommendation of the band, so I hope some of you Battle Metal fans enjoy them