battle battle took place september armies byzantine_empire army launched invasion confronted byzantine force resulting battle victory byzantine losses certain identified scholars probable original source literary hero background failure arab attempt conquer byzantine capital constantinople regular annual raids undertaken forces major invasion led heir apparent future resulted settlement byzantium forced sue truce exchange annual payment gold empress regent athens resolved cease payment tribute warfare arabs raided theme early byzantines ground fortress town spent years turning major stronghold military base cross border expeditions byzantium battle accession raids launched years relatively minor affairs great invasion new reign occurred large expeditionary force crossed gates theme raid mentioned arabic sources description byzantine chronicler points major invasion confronted forces powerful byzantine thematic armies theme theme site battle called modern scholars beginning identified town western exit according brief account battle ended bloody defeat byzantines lost men officers including members banished provinces continued support singles loss capable officer division commander impact immediate impact byzantine defeat losses heavy level devastation region minimal material terms little distinguish defeat typical arab raid marks large scale border warfare relative continued death subsequent civil war long term consequence battle death virtue unusual prominence account identified original later epic hero
Battle of Kopidnadon