Useful to Rome as a buffer on the eastern outskirts of its empire, Palmyra was integrated into the Roman province of Syria, but it was eventually declared a free city.
Palmyrat nähti kui kasulikku kaitserajatist Rooma impeeriumi idapoolsetel äärealadel, mistõttu ta liideti Rooma provintsi Süüriaga. Siiski aja möödudes kuulutati Palmyra vabaks linnaks.