Augustus was loath to seek further conflict with Parthia. However, the coveted standards were still held by the Parthians and this was of great concern to Augustus, forcing him to regain them through a less conventional method. In 30 BCE, Phraates IV usurped the throne of Tiridates who fled to Syria under the protection of the Romans, whence he launched an attack on his native land. Although this failed, an agreement was made whereby he could live under the Romans as a king in exile if he brokered the return of the Roman standards. The standards were returned to the future emperor Tiberius, who received them on an island in the Euphrates.