The Dark History's Impact
Gym tells Loran to hand over the Turn A Gundam, that it destroyed Earth's civilization and that he is protecting Dianna by destroying it. Merrybell joins in the battle on her Bandit. Gym is told that the Militia have taken Dianna's palace, but he doesn't care, leaving it up to Agrippa. Dianna, Agrippa and others head further underground where people are kept in cryogenic stasis. People are shocked when Dianna and Kihel reveal when they had switched places. Harry defends against an attack from Sweatson's Mahiroo squad. Dianna leads everyone into the Dark History room, which plays events from the past, including all previous Gundam shows, such as mobile suit battles and colony drops. Images of the Dark History start appearing throughout the area, including the city and the fight between Loran and Gym on the surface. Lastly, a video is shown of the Turn A Gundam using the Moonlight Butterly attack to destroy Earth's civilization.
Aired 11/02/2000EP 43 - The Dark History's Impact

Turn A Gundam
This story is set thousands of years in the future. The people of Earth have forgotten the space wars of the past, reverting back to a pre-industrial existence. But the lunar settlers known as the Moonrace, who have retained their high technology, now plan to seize their mother planet for themselves. As the war of the worlds begins, a young Moonrace citizen named Loran Cehack, pilot of the legendary Turn A Gundam, struggles to bridge the gap between humanity's long-separated branches.
(Source: GundamOfficial)