Lightning Over Yemen: Studies Volume: A History of the Ottoman Campaign in ... - Muhammad ibn Ahmad Nahrawali, Muḥammad ibn Aḥmad Nahrawālī, Muḥammad ibn Aḥmad Al- Nahrawānī, Qutb al-Din al-Nahrawali - Google Books

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Yemen's inhospitable mountain ranges and fiercely independent people have kept all but the most determined invader at bay; and even the Ottomans, when they entered the region in the 16th century, were hard put to achieve more than a tenuous occupation of…