Arrian's work on military tactics, Acies Contra Alanos, offers valuable insight into the strategies and tactics employed by the Roman army in the 2nd century AD. This edition also includes translations of Periplus Ponti Euxini and Periplus Maris Erythraeicum, two geographical works that describe voyages along the Black Sea and the Red Sea, respectively. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.