Roman-Parthian relations during the East-West Struggle in antiquity

Roman-Parth relations that started in 92 BC had continued amicably until 53 BC. Due to the Armenia Question these relationships have been disrupted. In 53 BC, Marcus Licinius Crassus was appointed as a proconsul to Syria. After Crassus was appointed as a proconsul to Syria he started preparations for a Parth campaign. In 53 BC, in Carrhae, Crassus suffered a great crush, Crassus and his son were killed and the legion standards was captured by the Parthian army. Rome has never forgotten this defeat in 53 BC. After the establishment of the Imperial administration in Rome in 27 BC Rome-Parth relations were moved to different extend. Although battles were fought between the Roman Empire and the Part Empire in the period between Emperor Augustus and Emperor Nero Euphrates accepted as a boundary. Roman Empire in the reign of Emperor Nero achieved superiority in Armenia. When the Roman Emperor Traianus had a great campaign to the Parthian Empire and took over the capitals of the Parthian Empire Senatus had gave him the title of Parthicus Maximus. In this study, which we prepared by using ancient sources, inscriptions, coins and Babylonian archives, we tried to find the underlying causes of the Roman-Parthian relations.