Adamclisi is a commune in Constanța County, in the Dobrogea region of Romania. The Battle of Adamclisi was a major clash fought nearby d…Adamclisi is a commune in Constanța County, in the Dobrogea region of Romania. The Battle of Adamclisi was a major clash fought nearby during Trajan's Dacian Wars in the winter of 101/102 between the Roman Empire and the Dacians resulting in a decisive Roman victory, though both sides suffered very heavy casualties.