Answer
At Melantias, Belisarius successfully defended the Eastern Roman Empire against a surprise incursion of the Huns. In the winter of 539–540 CE, Belisarius, a prominent Eastern Roman general, positioned his army at this strategic location situated on the borders of Armenia and Mesopotamia, anticipating the Huns' arrival. His military prowess and careful planning allowed him to effectively repel the invasion and secure the region.