"Then a fight broke out at Fort Klemark. The fort was destroyed and two hundred Republic soldiers killed. Eclipse went dark, and I've been tracking them ever since."
―Elin Garza[src]

Fort Klemark was a Republic Military fort in the city of Klemark on Altair-9. When the Republic Special Forces Division unit Eclipse Squad went insane, the resultant fight at the fort killed two hundred Republic soldiers and destroyed the structure.