Great War

The Great War (グレートウォー, Gurēto Wō), sometimes also known as the Fourth Cybertronian War was the most violent outburst of fighting, between the Autobots and Decepticons who have wage their battles for supremacy of Cybertron and the universe. It was the fourth of many large wars to engulf the populace of Cybertron.

It was started by Megatron's initial drive to overthrow the caste system, although this noble goal was corrupted by his jealousy of Orion Pax's ascension to Prime. Fighting between the two forces lasted for several million stellar cycles. By its end, however, Cybertron was a barren and uninhabitable wasteland, devoid of pure Energon, forcing Optimus Prime to enact the Great Exodus. Though the conflict left the dead Cybertron, it continued on other worlds, notably when Optimus and Megatron came to Earth, which turned out to be the staging ground for the next landmark event in the Cybertronian race's history.

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 * —About the Great War.

Known Participants

 * Autobots (Winners)
 * Decepticons
 * Neutrals

Known Battles

 * Battle of Technar
 * Battle of Tyger Pax