Never before the Battle of Yarmuk presented in English literature so much complete and thorough. Both sides were presented equally and the backgrounds were defined clearly and intact. Inquiries of the aftermath were also seriously done and showed how decisive the battle was.Some flaws regarding the sandstorms and the accusation of Ghassanids turnover to the Muslim as the main cause of Byzantines' defeat did not even scratch the beauty of this work.Easily the best-buy book that came out from OSPREY Campaign Series.