The 4th Regiment, an element of the Imperial Army, was stationed in Tiems throughout the Galactic Civil War. This regiment participated in the Battle of Tiems, being kept as a reserve force to take advantage of any enemy advances. As Alliance troops retreated along the Tiems Road, the 4th Regiment pursued them alongside the 2nd Regiment, only to be ambushed by more Alliance soldiers, resulting in the unit's near annihilation.
- The Rebel Alliance Sourcebook
- The Rebel Alliance Sourcebook, Second Edition