The Battle of Koren Pass was a military engagement between the United Empire of Earth (UEE) and the Tevarin in 2605. It took place on Crion (Caliban II), when a group of UEE Army soldiers traveling in Nova tanks were besieged by a Tevarin strike team. The battle lasted sixteen straight hours, without rest. It ended with a UEE victory when rescue forces arrived and forced a Tevarin retreat.