Legio I Isaura Sagitaria was a pseudocomitatensis Roman legion.[1] The legion was probably created by emperor Probus.[2][3] It is possible that in the beginning it, together with the II and III Isaura, it was used to defend the Isauria region,[2][4][5] The legion campaigned against the tribes of Cilicia.[2] As its name suggests, its legionaries could be used also as archers,[6] an uncommon feature for Roman legions. According to Notitia Dignitatum, in the beginning of the 5th century the I Isaura was under the command of the Magister Militum per Orientem.
