Decline and fall of the Sasanian empire : the Sasanian-Parthian confederacy and the Arab conquest of Iran | WorldCat.org
This book examines why, in the seventh century CE, the seemingly powerful and secure Sasanian empire of Persia succumb so quickly and disastrously to the all-conquering Arab armies of Islam. The author suggests that the collapse of the Sasanians was due to an earlier corrosion and decline, which resulted in their own internal weaknesses. The decentralized dynastic system of the Sasanian empire, whose backbone was a Sasanian-Parthian alliance, contained the seeds of its own destruction. This confederacy soon became unstable, and its degeneration sealed the fate of a doomed dynasty