Doltec III was a class D planet, an uninhabitable world in the Cardassian Union. It was the third planet of the Doltec system, located in the galaxy's Alpha Quadrant. (ST video game: Armada II mission: "Executioner")
History
On stardate 54656.5 (2377), Chancellor Martok dispatched the IKS Sad'taj to the Doltec system to destroy the Kestian colony in order to prevent it from joining Gul Kentar's rebellion against the Klingon occupation of Cardassian space. The Klingons were able to maintain and expand their besieged starbase Ejyowaw-10, and succeeded in occupying the entire system, including Doltec III. (ST video game: Armada II mission: "Executioner")