السراسنة (Saracens) وعلاقتهم بالامبراطوريتين الرومانية والبيزنطية (القرنين الثالث والرابع الميلاديين)

This Paper investigates the meaning of word Saracens and its use in Roman, Byzantine and Syriac historical sources in addition to their relation with Roman and BYZANTINE empires during third and fourth centuries AD. Also, it deals with the development of the meaning of the word during successive historical periods and inner and outher limes. The research deals with description of Byzantine Historians to the Saracens and the spread of Roman and Byzantine forts and military units along the eastern broder from Syria in the north to Wadi al-Hasa in the south.