The Agrona was a Kkore mega-carrier and the massive flagship of the Kkore invasion fleet of the Uncharted Territories. It was the mobile base of the Kkore's supreme leader Ddan-Myr and was used to coordinate the campaigns being carried out by the Kkore throughout space-time. Its technology was quite sophisticated, with Scorpius believing that it was several hundred cycles beyond the level of Peacekeeper technology.
At the conclusion of the final battle of the War for the Uncharted Territories, it was destroyed by the combined might of the Armada after Ddan-Myr refused to surrender.