In Japan the main technology base is a part of the country that "rifted" in that Technology is in fact instrumental to the continued survival of mankind in a world where many creatures now can survive being struck by the main gun of a battle tank.
In Japan the main technology base is a part of the country that was "rifted" from Earth's past. The technology, reguardless of the unlikelyhood of the varied factions obtaining it, is in fact instrumental to the continued survival of mankind in a world where many creatures now can survive being struck by the main gun of a battle tank.