The Anastasian Wall Battle or Battle at the Anastasian Wall, which took place at the end of winter – beginning of spring 559, was a pivotal battle between the Byzantine army commanded by Dux Sergius[1] and a Kutrigur Bulgars[1] army commanded by Zabergan in the 558-559 AD Kutrigur campaign against the Byzantine Empire.[2][4] The battle took place at the east side of the Anastasian Wall, about 40 km west of Constantinople.
^According to: Victor Tonnennensis - Chronica, Theophanis Confessoris - Chronographia, Agathias Scholasticus - Historiarum libri, Procopius Caesariensis - Libri de bellis, Ioannis Malalae - Chronographia.
^James C. Bradford, International Encyclopedia of Military History