New Model Army
Saw them play live at the Ritz, Manchester, in 1985.
Sadly, they didn't play "Vengance", their finest work, due to its complexity and difficulties of doing it live. Still, a great song.
The military one, as opposed to the popular beat combo, was formed in 1645 by Oliver Cromwell and Thomas Fairfax. It was, "new," in the sense that it was a properly organised, trained and victualled Army. The fashion hitherto had been for a general invitation to turn up for a fight - pointy stick and spare pan-loaf optional.