ivanargen Писал(а): Then what do we define by war metal? music or theme? I think both because the term war metal at least I use to designate any metal band that supports or promotes the war, generally tied to the extreme metal as the black but they can be nsbm, death, death-black, thrash, raw...too.

I'd say it's more the nature of the music. Don't quote me on this but many bands termed war metal generally have lyrical themes of blasphemy and desecration first and foremost, like Black Witchery and Archgoat. These bands when it comes to music are like the 'brutal death' of BM. Most of them tune a whole step down or lower unlike traditional and raw BM and have a lot of commonalities with death metal.