Klemark was the capital city of the planet Altair-9. During the Galactic War between the Galactic Republic and the Sith Empire, General Vander of the Republic Army waged a ten-month siege of Klemark in order to free the city and the planet from Imperial control. Eclipse Squad, a Special Forces unit infiltrated the city and disabled the defense network, allowing the Republic to take the city. However, Eclipse Squad later went insane and killed two hundred soldiers at Fort Klemark, destroying the fort in the process.