Hellas: Worlds of Sun and Stone
The Traoan War
In the year 1299 AE, the Hellenes attempted to strike a peace with the Amazorans after centuries of on and off warfare since they first encountered them. As per tradition, the Hellenes offered the Amazoran Queen a husband to symbolize the truce, a young man named Elan of the Attikans. However, Elan was kidnapped (and killed, though this wasn't known until years later) by the Zoran.
Numerous Hellenic systems unite together to rescue Elan and travel to Zoran Space for war, culminating in a war that lasts sixteen years and that caused even the gods to take sides. The war ended with a victory for the Hellenes and the Amazoran Queen keeping the truce with a 'honorable' posthumorus marriage to Elan.
Many great heroes were known to fight in the Traoan War, including the mighty Achilleos and the clever Odysseos (who's legend didn't truly start until after the war).