The Main Goals of the Sassanids in the Implementation of the migration policy of defeated tribes and captives

One of the important measures common among rulers in the history of ancient Iran was to move rebellious tribes and prisoners of war from one region to another, a policy that was used many times in ancient Iran and during the time of the Sassanid rulers. Based on this, one of the important issues investigated in this research is to find out for what reasons and in pursuit of what important goals the Sassanians moved rebellious tribes, rebels and also captives. And what were the results of their forced resettlement?Therefore, in response to the aforementioned issues by examining written sources and studies based on historical texts and by using the method of historical research and descriptive-analytical approach, the results of the research are that by moving some ethnic groups from their original origin to other areas, problems arise. And the riots that these tribes and clans created in their original settlement for the government and the surrounding areas would disappear. On the other hand, in some cases, the Sassanids tried to "fix the shortage of manpower" and "change the composition of the population of the cities" with the policy of relocating some defeated tribes and also the prisoners they took in the wars, and of course to "take advantage of the power and The skills of captives" also witness some forced migrations during the Sassanid era. However, one of the main reasons for moving these people was to "defend the borders"; For this purpose, the Sassanians considered one of the most important and effective ways to defend the borders was the settlement of captives and warring and defeated (hostile) families in the border areas to defend the territory against the invaders.