EN
Hatrā was a city in Upper Mesopotamia which gained strategic importance in Irano-Roman border zone in 2nd century AD and managed to successfully resist the attempts of capturing by the Roman army. Power shift in Iran which resulted in taking over of Iranian throne by Ardašīr I (224-242) changed the situation of Hatrā. Below considerations are an attempt to analyze economic, political and first of all military factors which allowed capturing the city in 240/241 by the Sasanian army.