Marches (country subdivision)

administrative territorial entity

historic Ukrainian region

Byzantine military frontier province

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

historic name for a region of northern Spain

border area between England and Scotland in the medieval and early modern eras

Islamic borderland territory based at Toledo

historical area in southern Europe

geographical region of Chile