Super Dimension Century Orguss

War breaks out as a result of years of political hostility and distrust between the competing nations of Zafran and Revillia. The answer for each nation was to seize control of Decimators, the same combat robots from antiquity that had nearly wiped out all life on Earth 200 years before. Only the desperate plan of Lean, a young cadet, and Nataruma, a powerful psychic young woman, to change the timeline of events 200 years earlier stands a chance between humanity's survival or complete extinction as the conflict progresses and the leaders of both nations grow hesitant to surrender.