A 1993 OVA that treats a Mars invasion like a real military engagement, not a spectacle. The aliens aren't here to monologue or philosophize, they're here to erase humanity's foothold in space, and the film doesn't pretend mankind has a moral edge just because we're the protagonists. It's all hardware, hard choices, and the cold arithmetic of warfare when you're outnumbered in hostile terrain.
Humanity's expansion into space hits a wall when an ancient alien civilization emerges from the depths of the cosmos. These beings, referred to only as the Gods, view mankind's colonization of Mars as an unacceptable transgression. Their response is swift and devastating: total war. Earth's military mobilizes its most lethal arsenals. Experimental aircraft designed for space combat launch into the Martian sky alongside orbital fighters and colossal desert battleships armed with cutting-edge weaponry. The fate of human civilization now rests on whether technology alone can turn back an enemy that has watched humanity from the shadows for centuries. The Gods command overwhelming firepower, including a stealth carrier called Hell that renders conventional defenses useless. As the battle intensifies across Mars's crimson wasteland, humanity discovers that raw destructive capability may not be the deciding factor. The real threat lurks beneath the surface of the aliens' strategy, something far more insidious than any weapon. Humanity must adapt, improvise, and sacrifice everything to survive contact with beings they barely comprehend.