The Tropaeum Traiani is a monument in Roman Civitas Tropaensium (site of modern Adamclisi, Romania), built in 109 in then Moesia Inferior, to commemorate Roman Emperor Trajan's victory over the Dacians, in the winter of 101-102, in the Battle of Adamclisi. Before Trajan's construction, an altar existed there, on the walls of which were inscribed the names of the 3,000 legionaries and auxilia (servicemen) who had died "fighting for the Republic".