Metal Armor Dragonar(1987)

Metal Armor Dragonar is a mecha anime series set in 2087, when the militaristic United Lunar Empire Giganos launches an invasion of Earth to reshape human civilization. During an assault on a colonial settlement, three ordinary civilians discover hidden prototype Metal Armor units called Dragonars and are forced to pilot them against the invading forces. The series follows these unlikely heroes as they navigate combat, camaraderie, and the moral weight of warfare. Blending action-heavy mecha battles with character-driven storytelling, Metal Armor Dragonar explores themes of survival and resistance in a war-torn future.