Abbasid–Byzantine wars

Lykandos or Lycandus (), known as Djahan in Armenian, was the name of a Byzantine fortress and military-civilian province (or "theme"), known as the Theme of Lykandos (θέμα Λυκανδοῦ), in the 10th–11th centuries.

Al-ʿAwāṣim (, "the defences, fortifications"; sing. al-ʿāṣimah, , "protectress") was the Arabic term used to refer to the Muslim side of the frontier zone between the Byzantine Empire and the Umayyad and Abbasid Caliphates in Cilicia, northern Syria and Upper Mesopotamia. It was established in the early 8th century, once the first wave of the Muslim conquests ebbed, and lasted until the mid-10th century, when the Byzantine advance overran it. It comprised the forward marches, comprising a chain of fortified strongholds, known as al-thughūr (; sing. al-thaghr, , "cleft, opening"), and the rear

782 Abbasid invasion of the Byzantine Empire

series of military operations launched by the Abbasid Caliphate in 806 against the Byzantine Empire.

Loulon (), in Arabic known as '''Lu'lu'a''' (), was a fortress near the modern village of Hasangazi in Turkey.