This is a comic book I read no later than 1993 (so is pre-1993).
And probably after 1988 though I can't be certain.
The protagonist is a huge barbarian with an axe, who seems like an old man, who is defending a series of gigantic walls against an invading army, apparently single-handedly. They keep having to fall back to inner walls. He has to get a massage at one point (not that kind of comic btw).
It's not a super-hero or funny comic, it's more of a serious graphic novel.
That's about it, sorry it's so vague.