Suetonius mentions that there were "several battles of varying success" (against the Dacians). Lucius Antonius Saturninus, commander of the Roman army in Germania Superior, revolted. In addition, the Iazyges, Marcomanni, and Quadi refused to provide troops to Domitian for his Dacian war. Domitian killed their peace emissaries and attacked them, then he left for the Rhine frontier. He was forced to return to Pannonia after the Romans had suffered a defeat there. All these problems halted the Roman offensive and Decebalus, now the Dacian king, sued for peace, sending his brother, Diegis, as his plenary representative. Under the terms of the treaty, Decebalus returned the Roman prisoners of war but he was also lent a number of Roman engineers who helped him in building defensive fortifications. The Romans would pay an annual subsidy of 8 million sesterces and Decebalus was recognized as a client king of Rome. Aftermath For the remainder of Domitian's reign Dacia remained a relatively peaceful client kingdom, but Decebalus used the Roman money to fortify his defences. Domitian probably wanted a new war against the Dacians, and reinforced Upper Moesia with two more cavalry units brought from Syria and with at least five cohorts brought from Pannonia. Trajan continued Domitian's policy and added two more units to the auxiliary forces of Upper Moesia, using the buildup of troops for his Dacian wars. See also Dacian warfare Notes References Bunson, Matthew (1994), Encyclopedia Of The Roman Empire, Infobase Publishing, 2002 Bury, J. B. (1893), A History of the Roman Empire from its Foundation Grumeza, Ion (2009), Dacia: Land Of Transylvania, Cornerstone Of Ancient Eastern Europe, University Press of America, 2009 Jones, Brian W. (1992), The Emperor Domitian, Routledge. Mócsy, András (1974) Pannonia and Upper Moesia, Routledge, 1974 Salmon, E. T. (1944), A History of the Roman World from 30 B.C. to A.D. 138, Routledge, 1990 Bibliography Tapae 87 Flavian military campaigns Wars involving Dacia 1st century 86 87 88 80s in the Roman Empire Domitian 80s conflicts