Slovakia in the Roman era
The reign of Augustus (27 BC - 14 AD) began a long period known as the Pax Romana, or Roman peace. Despite continuous wars on the frontiers, and one year-long civil war over the imperial succession, the Mediterranean world remained at peace for more than two centuries. Augustus enlarged the empire dramatically, annexing Egypt, Dalmatia, Pannonia, and Raetia, expanded possessions in Africa, and completed the conquest of Hispania.
By the end of his reign, the armies of Augustus had conquered the Alpine regions of Raetia and Noricum (modern Switzerland, Bavaria, Austria, Slovenia), Illyricum and Pannonia (modern Albania, Croatia, Hungary, Serbia, etc.).
Parthian Empire
Following the defeat of Antony and Cleopatra of Ptolemaic Egypt at the Battle of Actium in 31 BC, Octavian consolidated his political power and in 27 BC was named Augustus by the Roman Senate, becoming the first Roman emperor. Around this time, Tiridates II of Parthia briefly overthrew Phraates IV, who was able to quickly reestablish his rule with the aid of Scythian nomads. Tiridates fled to the Romans, taking one of Phraates' sons with him. In negotiations conducted in 20 BC, Phraates arranged for the release of his kidnapped son. In return, the Romans received the lost legionary standards taken at Carrhae in 53 BC, as well as any surviving prisoners of war. The Parthians viewed this exchange as a small price to pay to regain the prince. Augustus hailed the return of the standards as a political victory over Parthia; this propaganda was celebrated in the minting of new coins, the building of a new temple to house the standards, and even in fine art such as the breastplate scene on his statue Augustus of Prima Porta.
Along with the prince, Augustus also gave Phraates IV an Italian slave-girl, who later became Queen Musa of Parthia. To ensure that her child Phraataces would inherit the throne without incident, Musa convinced Phraates IV to give his other sons to Augustus as hostages. Again, Augustus used this as propaganda depicting the submission of Parthia to Rome, listing it as a great accomplishment in his "Res Gestae Divi Augusti". When Phraataces took the throne as Phraates V ("r". c. 2 BC – 4 AD), Musa married her own son and ruled alongside him. The Parthian nobility, disapproving of both the incestuous relationship and the notion of a king with non-Arsacid blood, forced the pair into exile in Roman territory. Phraates' successor Orodes III of Parthia lasted just two years on the throne, and was followed by Vonones I, who had adopted many Roman mannerisms during time in Rome. The Parthian nobility, angered by Vonones' sympathies for the Romans, backed a rival claimant, Artabanus III of Parthia ("r". c. 10–38 AD), who eventually defeated Vonones and drove him into exile in Roman Syria.