The troops succeeded in seizing the Aparo sector, as well as the rest of the Tingel Arm early in the war, and quickly followed up those victories by assisting in wins on Korriban and Begeren. As the Empire grew, Imperial soldiers worked to secure more territory and prepare for the coming war with the Galactic Republic. The system of conscription and the training regimen that soldiers completed were both the creations of Odile Vaiken-the father of the Imperial Army and naval armada, as well as the first Grand Moff of the Empire. One variation of the standard trooper, the heavy Imperial trooper, worked in a similar, but more specialized role. Soldiers often worked alongside Imperial guardsmen, bounty hunters, Intelligence Ministry agents, and Sith Warriors and Inquisitors on the field of battle. Imperial soldiers were conscripted members of the Enlisted class-a social caste within the Empire destined to work in the military under the orders of their Sith overlords. The soldiers served as the ground invasion force for the Imperial Military's campaigns of conquest, and worked to defend the Empire's holdings during the Great Galactic War and Cold War. Imperial soldiers, also known as Sith troopers, were the infantry units of the reconstituted Sith Empire's army.